there is a safari thing for about €25, you go off in jeeps to the centre of the island up mountains which are unbelivable scenery and views, also stop for dinner (bbq) and refreshments all included in the €25, there are plenty of other activites which are offered by people on the street with flyers, there is go-carting out near the airport which is good for another day out, you'll have to make your own way out to it though