Car hire is more costly on Boa Vista than in Sal. There is far less demand. And supply may be limited also, as there is not the reliable fleet of Suzuki Jimnys which exist on Sal. Driving vonditions are almso more difficult with only a short stretch of tarmac road existing arouind the capital Sal Rei. Elsewehre the traditional Cape Verde volcanic cobbled roads soon give way to dirt tracks of uneven repair. The rioad out to Espinguera on the north of the island is marked only by white panited stones at 50-100m distances. In the south it can be still more difficult where the wind has swept big dunes across the road and made them impassable except to those with desert drigving skills.
Aluguer drivers on Boa Vista will not generally permit Europeans to share
one as they do on Sal, so you are faced with hiring the entire vehicle or
a taxi. This can be very expensive as fixed tariffs are not enforced as
C from London comments