Snorkelling at Isla Mujeres is one of the favourite pastimes of those who visit the island and one of the best spots to do this is at Garrafon de Castillo which is at the southern end of Isla Mujeres, this is the quietest part of the island where much of the luxury Isla Mujeres real estate is located, where prices start from $1m USD.
Garrafon de Castillo can be found by travelling from the town centre, toward the South Point, most visitors to the Island hire a golf cart and spend the day exploring the island in this way. You will pass a large supermarket called Chedraui and after a while you will see a restaurant called Oscars on your right, where incidentally they serve some of the best pizzas on the Island. Continue until you come to a roundabout where the Isla Mujeres Palace Hotel is located and turn left, you will pass Capitan Dulche where there is a museum, which is worth visiting. After a mile or so you will see a wine coloured apartment block called Sotovento, you turn right and there you will find Garrafon de Castillo. It doesn't take long, you can't get lost the island is very small just around four mile long and less than half a mile wide.
They call it a beach club which is probably stretching the term a bit, it was build many years ago but nevertheless has a lovely beach, the staff are friendly (as is the whole Island) and you can hire all the snorkelling equipment you need there. The fish you will see are amazing, the colours are extraordinary and rather than swimming away from you when they see you coming, they come to meet you to take a closer look.
Isla Mujeres must be one of the safest locations in the world, there is no real crime; you can safely walk around at 2 or 3 in the morning and there are no burglaries. This is why many people visit the island year after year and eventually buy Isla Mujeres real estate as their future retirement home, where else could you live in such peace.