Poza Tule, Sistema Zacaton
The largest sinkhole by diameter in Sistema Zacaton with two travertine lids.
Poza Verde, Sistema Zacaton
Large sinkhole in the unique Zacaton karst field.
Sistema Zacaton
Unique karst field created by thermal acidic waters heated by volcanic heat. Contains the world’s deepest water-filled sinkhole, the 339 meters deep El Zacatón sinkhole with 319 meters deep lake, and floating islands. Poza Seca is one of the unique travertine capped sinkholes of Sistema Zacatón – here the formerly open sinkhole has sealed itself with a limestone lid. Most likely it hides unknown life forms, not investigated.
Poza del Caracol, Sistema Zacaton
One of the prominent features of the unique Sistema Zacatón is Poza del Caracol – small, very deep sinkhole that is not fully explored.
La Pilita sinkhole, Sistema Zacaton
110 m deep sinkhole in the unique Zacatón karst field.
Uet era Ongael
Small marine lake (0.9 ha) with its own subspecies of jellyfish Mastigias cf. papua remengesaui.
Clear Lake
Marine lake (3.9 ha) with its own subspecies of jellyfish Mastigias cf. papua salii.
Goby Lake
Round marine lake (2.1 ha) with its own subspecies of jellyfish Mastigias cf. papua nakamurai.
Uet era Ngermeuangel
Marine lake (4.3 ha) with its own subspecies of jellyfish Mastigias cf. papua remeliiki and Moon Jellyfish Aurelia sp.
Jellyfish Lake
A unique marine lake with an area of 5.0 ha, has an underground connection to the sea. Stratified in two layers that do not mix. Isolated from the sea 12,000 years and contains a distinct population of two species of jellyfish – endemic Mastigias cf. papua etpisoni and most likely endemic Aurelia sp. Millions of these jellyfishes make strict daily migration around the lake. Four more marine lakes with jellyfish on the nearby islands but Jellyfish Lake is the only one open to tourists. The number of jellyfish has reached up to 31 million (January 2005), currently some 5 million.