After more than 20 years of scuba diving it is very difficult for me to have a special surprise underwater. If I’d say that I was very surprised this time, then your first thought might be of Mexican caves called cenotes. Near the Cancun on the Yucatan peninsula is the largest number of cenotes in the world. Amazingly crystal clear waters and such ambient that would most definitely impress anyone. Underwater photographers would want to come back here again for sure. Different periods during the year affects on ambient underwater, making the experience different each time, and if I would mention that even different time of day affects the experience underwater in these cenotes than you will surely understand how much variety in photography you can have on one location only. Probably the most interesting part for every photographer are the light beams that are unbelievably thick and various in shape and colors! Refraction of light underwater creates amazing shapes and whole ambient turns into unreal location that I could describe like from another planet.
Cenotes are surface connections to subterranean water bodies.While the best-known cenotes are large open water pools measuring tens of meters in diameter, such as those at Chichén Itzá, the greatest number of cenotes are smaller sheltered sites and do not necessarily have any surface exposed water. The term cenote has also been used to describe similar karst features in other countries such as Cuba and Australia, in addition to the more generic term of sinkholes.
Cenote water is often very clear, as the water comes from rain water filtering slowly through the ground, and therefore contains very little suspended particulate matter. The groundwater flow rate within a cenote may be very slow. In many cases, cenotes are areas where sections of cave roof have collapsed revealing an underlying cave system, and the water flow rates may be much faster: up to 10 kilometers (6 mi) per day. Cenotes around the world attract cave divers who have documented extensive flooded cave systems through them, some of which have been explored for lengths of 100 km (62 mi) or more.