1. Cave of the Sleeping Sharks is a unique scuba diving site located off the coast of Isla Mujeres, near Cancun. It is a cave system that is home to dozens of sleeping nurse sharks, who rest on the cave floor during the day. The cave is also home to various other marine life, including lobsters and crabs. However, the most popular attraction here is definitely the sharks. Diving here is an unforgettable experience, as you can swim in close proximity to these docile creatures without disturbing them.

2. As the cave is located in the open sea, there are no specific working hours and no official phone number. However, many scuba diving companies in Cancun offer trips to Cave of the Sleeping Sharks, so you should contact them to book a tour. You can also search for local dive shops in Isla Mujeres that offer trips to this site.

3. Prices for diving trips to Cave of the Sleeping Sharks vary depending on the company and the length of the tour. Most trips include transport to and from the dive site, equipment rental, and a professional guide. Some companies may require that you have a scuba diving certification before they will take you to this site, so be sure to check beforehand. As the cave is located off the coast of Isla Mujeres, you may need to take a ferry or boat to get there, which can be arranged by your dive tour operator.