the easiest and safest way is to let a local guide like alex organise it. 2 daily flights leave caracas morning and afternoon, one early daily aerotuy flight from porlamar only.
you go to a different island every day on boats which are the only transport, the town is too small for cars.
there are 60 guesthouses in the town of gran roque budget: del recuerdo, el botuto, magaly, roquelusa. upmarket: la cigala, macanao, malibu, canto de la ballena and many more.
la chuchera or pedro's pizza in town. and in craskey island forita's seafood for lunch fresh fish.
snorkeling. diving, kayaking.
$50 u.s. p/p
most islands are off shore others side shore
wind all year best feb through june, aug through jan on and off but good with big kites
24 celcius flat and choppy, one wave spot: franciskey de arriba.
some reef surfaces you can see easily.
myself, I arrange trips there. also jesus cabilla and claudio fishing guides.
vela windsurf center run by elias in franciskey abajo.
avoid shallows and sailboats. no kiting in gran roque the main island.
I kite there all year very often, very good for island crossings and learning navigation. also tricks.
small coral cays and sand bars no obstacles.