The archipelago of the Medes Islands has received increasing levels of protection since 1983 and is strictly regulated, since 1990, with permits required for scuba diving and no fishing or anchoring allowed.
All the underwater environments to be found in the Mediterranean are represented in the seabed around the Medes Islands making this an area of exceptional ecological value and one with the greatest biomass in the whole of the Mediterranean Sea.
Dolphins and huge Sunfish are frequent visitors to the islands, and Eagle rays can be seen cruising over the seagrass meadow http://www.youtube.com/watch?v=IHPKemdd0vE&feature=channel&list=UL
The Medes Islands Marine Reserve provides a sanctuary for numerous species in danger of extinction such as Posidonia oceanica seagrass, beautiful gorgonian corals and Dusky groupers, some of which are more than 25 years old. Groupers have begun to spread out from the islands to repopulate the rocky Montgri coast which is now part of the Parc Medes, Montgri i Baix Ter which extends up to Cala Montgo, near L'Escala, and has some stunning wall, cave, and wreck dives.
L'Escala is where I coordinate marine research for the Silmar project with international dive volunteers, who get to dive the amazing Medes Islands Marine Reserve as a part of their induction training.