Ilha do Gaujiru, in north Brazil, is actually a real estate marketing name for the beach in the middle of a huge lagoon, called “Praia da Barra”. The lagoon is tidal sea water lagoon, when it's filled with water at high Tide, its huge, 700m at the widest part, and around 5km long. The water is flat, and the wind is strong, but for this great kitesurf conditions, you should plan your visit by the tide time table. Best time here is when high tide is in the middle of your kitesurf day. The famous kitesurfing spot is at the main beach, but other great kite spots are reachable by fisherman boats, and can be good solution for low tide conditions. View information and maps at the kitesurf section.
There are nice simple pousadas at the main beach, and a kite house at praia do Guajiru. Kitesurf infrastructure are developed, and you can find lessons, rentals and downwinds.
The wind is strong , and blows at season around 24-28 knots. The wind can get a bit gusty, especially near the small kite beach. Mind the electricity wires on the beach, and the boat ropes in the water.