Dids Kinniburgh
Google
We took one of the 8 man RIB rides out from Colonia de Sant Jordi to Cabrera and the whole experience exhilarating, beautiful and interesting. The 20 mile round boat trip was fun - the boat's pilot was very cheerful and engaging and obviously passionate about the archipelago. A recording of the story of the islands was played as we went along, and it was available in German, Spanish, English and Italian.
When you reach the main island you can use the loos and there is a small cafe. We walked up to the castle and back - you get about an hour on the island. It is worth listening to the narration on the boat, and what went on on the island in the Napoleonic Wars. It's quite dark!
Oh yes, and we saw the blue cave which was incredibly beautiful, and an osprey and a dolphin. I'd highly recommend the trip. We went with Marcabrerea who have an office in Colonia de Sant Jordi.