Half-day = 40€/person ; all day long from 9:00 to 17:00 = 70 €/person
There's no wind, that's not a problem!
Let's enjoy an island tour by 4x4. Visit the Harbour of Palmeira, the big town of Espargos, the famous healthy bath of Salinas de Pedra de Lume.
Let's also ride to Odjo Azul do Burracona ("Blue Eye of Burracona") which can only be seen at noon when the sun is at its top :-) This is also a natural swimming pool.
Stop at the Shark Bay and walk into the water through the sharks. Scary time guaranteed !