Rented a car from the Avis hut downtown - note - the man takes a 2 hour lunch break so make sure you know when it is so you are not left holding the keys when the ship sails! Drove round the entire island. Takes an hour for the drive - so you can figure out how much time you have available for the two Mayan ruins, the two national parks, or the many beaches.
Traders in the town square have the best prices on souvenirs (negotiate).
Take a private tour with Bodden and see the real island. This is not a place to go for beaches, but for country collectors, it provides an interesting look into island life. Roatan is not yet totally "developed" but is getting there. For those who knew St Maarten 20 years ago compared with today, see Roatan now, before it is ruined with high rises.