Praia Das Sete Onsas Looking to enjoy waves? Visiting Praia Das Sete Onsas will give your wave thirsts the ultimate quench. Many resorts around the world have tried to recreate the multi-layered waves of this beach. However, some have tried but none has ever been successful in making the natural “Seven Waves” of this grey-sand resort. The waves are suitable for kids and beginner surfers. You’ll always hear the roar of the tides if you choose to stay here.