legends is a nice hotel. le morne would be one of the best spots for gts down in the south west, that miles from you sadly, there is good fishing along the east of island too. legands is up near coin de mire, theres plenty of places to try near there for big gts if you get out to the islets, but the beaches are poor enough, the rocks by the hotel will prduce sweetlips, groupers, lizard fish and snapper on small plugs. bonefish are rare as hens teeth, you need flat sandy shallow lagoons for them. bring a range of small shallow divers all the way up to big beefy surface poppers for your lure fishing needs. have a rod with a bit of grunt i believe the mauritiun record for gt is 75kg.
for bait, i found the snails located in rock pools, think their trochus snails to really good for the small stuff. if you head to the local fish market pick up some calimari and bonito fillets. at night you get small snappers (capitan fish), goatfish, small morays and if your lucky jacks on bait.
kayaking is safe enoug but exercise caution dont go too close to the reef because its very shallow (less then 5 feet at times one mile out) once you go over the reefs it drops off dramticaly in the space of a few hundred yards. the swell can be treacherous too especially at this time of year.