Take lots of good inscect repellent for the tiny sand fleas that are abundant in sandy areas, eapecially at dusk, and which leave a nasty welt. Google Roatan and 'noseums' or
Roatan sand fleas" for more info about brands, etc. This is vital.
A wonderful place, but beware of those bugs. Also, avoid the mainland. Very dangerous these days. Roatan is relatively safe, but avoid traveling through the mainland.