Hike to the ruins of El Mirador near the Mexican border. This ancient Maya city was once home to hundreds of thousands of people and has the highest pyramid of all Mayan cities of about 70 m. The site is covered by vegetation and excavation is still going on. Prepare for a 17km hike to the ruins of Tintal on day one, 23km to El Mirador on day two, one day at the site and then all the way back through dense jungle. A tour can be organized in Flores. There is also a 6-day tour that takes an alternate return route to include the ruins of Nakbe and Florida. A minimum of 2 people is necessary and therefore there is often only one tour per week during low season (if the weather allows). Prices range from Q1300-1600 depending on the length of the tour and the season and include transport to Carmelita, food, water, tents for camping, mules to carry your stuff, 2 guides and a cook. Bring good shoes, a headlight, mosquito repellent, flipflops, and some extra cash for bucket showers and tips. No cell phone coverage at all, no electricity. Not all of the guides speak English.
La Cueva de la Serpiente, the cave of the serpent
Inside the cave are many formations that resemble various objects, such as animals, people, and of course ordinary stalagmites and stalactites. Most of the relics are labeled (in Spanish) and will be identified by your guide.
A small zoo that is home to monkeys, jaguars and raccoons as well as some animals rescued by ARCAS. The zoo is a 10-minute boat ride from Flores (inquire behind Hotel Santana).
El Mirador de Kan Ek
Large overgrown Maya ruin a stone's throw from Flores, on the San Miguel peninsula just across the lake about 250 m distant. Easiest way to get there is by boat. Haggle with the lancheros, who will want to take you on a full (more expensive) tour of various sights. If archaeology is your thing, insist on only seeing the Tayasal ruins, and that the lanchero guide you to the major pyramids (all overgrown) - otherwise you might miss them on the forest trails. The first pyramid, known as the Mirador ("viewpoint"), is a 5-minute walk from the lakeshore, with concrete steps up the side to reach the top, where a wooden tower has been built to give fantastic views across the lake. There is another large pyramid nearby, and the main plaza has a couple of badly damaged stelae, and a smaller pyramid.