Another $1-$2 per person tipper here. Since there are 4 of us,Just there $4.00, if decent $5.00 and if wonderful $10. It really depends on how and where and what. In Nassau for example, the driver is just suposed to give a bus ride with pointing some things out--ours stopped so we could really see the stuff and let us out a few times to get photos and do a tad more than we had expected to be able to do. He ended up getting $10 since I got photo ops I never would have expected and a much mroe detailed view of things.