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MEXICO

Diving in Media Luna: Exploring an Ancient Lake (2010 Update)
by Richard Worfel

MEXICO WIKI

Publication date: 2010

 

FLICKR ALBUM: Water


Media Luna has undergone a complete facelift over the last eight years. I first wrote about Media Luna for Planeta in 2002; since then Media Luna has become a State Park and protected natural area. It is operated and managed by the local ejido system, El Jabali. Media Luna has become a gold mine for the ejido. As many as 3,000 daily visitors come to the park over the holidays where they spend thousands of pesos on entrance fees, food, water toys, and drinks at stands operated by citizens of the ejido. On a normal day, several parked buses at the entrance as well as over 200 cars in the parking lot. The park has quickly become a major attraction for people looking for an inexpensive means of family outdoor entertainment.

Although the quaintness and mystique of Media Luna has been lost among the crowds, I continue to love this location as my favorite freshwater dive spot and getaway. The purpose of this article is to update perspective travelers about Parque Estatal de la Media Luna so they can better plan a trip to this park. I suggest one reads my first article, “Diving in Media Luna: Exploring an Ancient Lake,” for an idea of the diving conditions and driving directions.

A short strip of the road leading to Media Luna has been paved. For the most part the road is still dusty and bumpy. On wet days, the road is muddy and can be slippery in spots. One does not need a four-wheel drive vehicle but be sure to take your time and enjoy the orange fields and other agricultural scenes as you make your way to Media Luna.

One of the first things you will notice is that the entire park area has been fenced off. There is new a fee to pay for entrance into the park. It used to be free. The basic entrance fee is only 20 pesos per day. If one wishes to scuba dive, the fee is 70 pesos. The camping fee will depend on the number of campers in the group. It is no longer possible to drive to the boardwalk that leads to the main dock. Now, one must park in the parking lot and carry equipment the quarter mile or so to the lake. An alternative is to pay one of the young boys in the parking lot to carry your equipment. They are seen standing around with dollies and wheelbarrows. The average tip is about 30 pesos, one way, for them to carry your equipment.

There are new restrooms with a controlled drainage system that no longer puts the sewage into the channels. The restrooms are better maintained than before. Several attendants are available during the day. Changing areas and showers are also available.

Changing into a swim suit at the shoreline is no longer recommended due to all the people that will be staring at you. Bring your own toilet paper in the evening and do not forget to take small change for tips during the day.

It is easy to find the way to the main dock due to the new brick sidewalks. Just follow the sidewalks from the entrance and you will end up at the boardwalk that leads to the lake. The sidewalks are an improvement that is especially appreciated on wet days.

New concrete block stands have replaced the old thatched roof shacks that sold goods to visitors. These buildings will be the first thing you will see once you pass through the entrance. There are over fifteen stands that sell just about everything one needs while picnicking. Tacos, beer, and sandwiches are some of the most popular items. One benefit of the new structures is improved drainage. Waste is no longer dumped onto the open ground where it could leach into the underground water system. Of course, the sanitation has also improved as the dirt floors were replaced with concrete floors

A boardwalk was constructed along the shoreline adjacent to where there used to be campsites. The boardwalk is sturdy and convenient for swimmers and divers and connects to the main expanded dock. There is also a floating dock in the lake that is approximately fifty meters from the main dock. A floating rope has been stretched between the main dock and the opposite end of the lake. Swimmers use the rope as a guideline.

Several cabins have been built in the park. The cabins are rented at a reasonable price. They sit about 200 meters from the lake. They do not have restrooms but are located close to the new restrooms. I still prefer to stay at the Hotel Media Luna. It costs about the same as the cabins and is much cleaner and many times more convenient. The food at the hotel is better than at the lake plus the dive shops are at the hotel’s location.

A new camping area was established along the irrigation channel near the entrance. People used to camp under the huge evergreen trees next to the lake. The idea of moving the camping to outside the tree canopy was to give the understory a chance to grow back to its natural state. Unfortunately, people are still camping under the canopy resulting in compact soils that do not allow the area to recover. A matter of fact, campers are allowed to put up their tents anywhere they wish.

The biggest change has been the management of the park area. Actually, there never was any consistent management prior to becoming a state park. Before, there were few visitors and most everyone seemed to appreciate and respect the natural surroundings. Today, there are abundant visitors and respect for the natural surroundings seems to be lacking. Part of this appears to be the lack of control and enforcement of the rules established by the State of San Luis Potosi. The enforcement responsibility was turned over to the ejido system. Sadly, the ejido is not properly prepared for such a responsibility.

The ejido system in Mexico was reenacted during the presidency of Lazaro Cardenas (1934 – 1940). The ejido system is based on a government that promotes the use of communal land that is shared by everyone in the community. Approximately 60 percent of Mexico is comprised of ejido lands. An interesting point is that close to 90 percent of parks and reserves are ejido lands. The ejido leadership is made up of local citizens, mostly farmers, who take turns running the ejido. Their main interest is with profits, not the natural systems that used to make Media Luna so unique.

There is some degradation of the natural areas but they can be reversed with proper management. The following is a short list of avoidable and reversible situations.

The lush aquatic vegetation I discussed in my first article has been reduced by nearly fifty percent. Aquatic insects and fish need this vegetation. Swimmers cause the vegetative degradation. Swimmers kick and walk on the fragile vegetation, mainly water lilies, causing broken stems and damaged roots. Restricting swimming in these areas would greatly reduce the damage.

Vegetation along the shorelines has been trampled down and the soils compacted. This increases erosion and reduces the visibility of the water due to runoff. Restricting footpaths along the shorelines would eliminate this problem.

Overcrowding is a major problem, especially around the holidays. Packing too many people into the park has resulted in a total loss of control. Visitors build camp fires and set up their tents where-ever they wish to. The natural vegetation is nearly gone. Many of the ecosystems that supported riparian animal life have been destroyed by human invasion.

A new type of algae bloom has been seen over the last two years. Divers, some who have been diving Media Luna for over 30 years, have never before seen a bloom like this.

Turtles were once abundant throughout Media Luna. Today, a diver is lucky to see a single turtle.

Fish populations are changing as the aquatic environment changes. Fish that were dependent on the water lilies are declining while non-native fish (i.e. Tilapia) are growing in numbers.

The one action that would benefit Media Luna most is an established set of environmentally sound rules. Rules do not do any good if they are not enforced. The ejido has this responsibility now but does not enforce already established rules. The state of San Luis Potosi has a responsibility too. They funded Media Luna’s facelift and the park is a state protected natural area. Maybe the state should be responsible for educating the ejido about environmental standards and enforcement. The key to survival of this preservation is enforcing rules.

It is important to understand that the priority of the ejido is profit. The ejido realizes the fact that the aquatic plants and fish could all disappear and people would still pour into the park to picnic, camp, and swim in the constant 82 degree Fahrenheit lake. Profits go into the ejido for various community projects. Limiting the number of visitors makes no sense to them because it would reduce profits. Primarily, the ejido is made up of poor farmers. They see income from Media Luna as a means to climb a little out of poverty or at least provide a better life for their families. Most are not university educated and have never traveled more than fifty miles from home.

The good news is that Media Luna exchanges its water every few hours. The springs supplying water are healthy and even expanding in some places. The natural cycle of lake water means a quick recovery.

As I previously mentioned, I still love Media Luna, especially the diving and the people. Fewer swimmers results in better visibility so weekday and winter diving are the best times to scuba dive in La Media Luna. The average visibility is 30 feet or more. It is important to keep in mind that diving at La Media Luna is an altitude dive (1,000 feet or 300 meters) so be prepared to adjust your dive plans.

A Few Suggestions

Scuba Diving – There is a PADI certified training center only six miles from Media Luna. Centro De Buceo is located along Highway 70 where one turns south and onto the road to Media Luna. Ossiel Martinez owns and operates the shop. Both English and Spanish are spoken at the shop. Ossiel is a Master Dive Instructor and offers a wide range of courses. Next to his shop is Hotel Media Luna. Ossiel's father operates a shop at the hotel that specializes in taking tourists on “Introduction to Diving,” trips.

Where to Stay

There are a dozen or so hotels in Rio Verde. We usually stay at the hotel next to the dive shop (Hotel Media Luna). Rates are around $50 (540 pesos) a night. Sure, there are other hotels but from our experience, you may need to bring your own toilet seat if you stay at one of them. Saul, his father, and their family, manages Hotel Media Luna. The rooms are always clean and the service (including an on-site restaurant) is always friendly. The rich smell of freshly brewed coffee leads one straight to the restaurant. Breakfast costs four to five dollars while other meals are around eight to ten dollars. For less than $10 (120 pesos), you can camp on the hotel grounds next to one of the swimming pools. Toilet facilities and showers are available at the hotel’s dive center.

Another option is to camp at La Media Luna. The cost for a group is less than fifteen USD’s per night. There are many vendors at the camping area selling food and drink and just about anything you may need. One specialty is corn-on-the cob, known as elote. The locals add mayonnaise, shredded cotija (white cheese) and a choice of spices to their elote. Elote tastes great after a dive. Vendors close their shops around 6 pm and reopen the next morning, sometime between 9 am and 11 am.

Enjoy the Food

There are an abundance of restaurants in Rio Verde. Our favorite is La Cabana. It is located on the west side of town along Highway 70. They offer a good variety of authentic dishes. The owner and chef, Adrian, speaks great English. The grilled platter that consists of a variety of meats, onions, and sausage is very good. If you are more adventurous then try the cabreto (baby goat) at an evening meal. A nice addition is a tall glass of Michelada, a refreshing spiced-up beer.

La Media Luna is not for tourists in search of beaches and all night crawling bars. Instead, it is for the adventurous visitors who seek rural Central Mexican culture and a rare scuba experience. It is all about economical family fun and exploration.


VISITING?

LOCATION -- La Media Luna is located in San Luis Potosi.

Travel!

AUTHOR

Rich Worfel has a BS degree in environmental studies and a MS in animal sciences. He is a PADI dive master and dedicated birder. To Rich, traveling is the spice of life. While serving for twenty-six years in the military, Rich traveled to four continents and sixteen countries. Those travels were for work, today’s are for adventure and discovery. He can be contacted via email


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