There is a Club Med there and a diving center both in the NE part of the island. If you fish the southern creek flats you may see a couple of skiffs taking people on lagoon tours and to my horror we did see jet ski's one day but they were not around for long. Fishing the northern creek flats we saw noone else. Saw no other fishermen the whole week other than locals after conch.
If interested I can give you Rochelle Hanna's email. PM me.