1) what license
? I hold a RYA Dayskipper commercialy endorsed but I believe I'd need to get a 6 pack USCG.
Yes, a 6-pax license.
2) What kind of permit
do I need : ie from the harbour, townhall etc.
Local regulation - you'd need to check.
3) a 36 feet american built s/y does it need to be ispected if host less than 6 pax?
4) what kind of boat would you recommend for such a business.
Lots of opinions there, I'm sure. Think of how easily you'll get your passengers on and off. Also how fragile the fittings in the passenger area are. They'll manage to break anything that's not 100% unbreakable, and some things that are. Finally, they'll no doubt need to go to the head
, and won't know how to operate one, or what not to put in one.
A lot depends on the type of tours you'll be running. Brief harbor tours can be done in a small, open boat. Half-day offshore
whale watches require something more substantial.
Oh, yeah. Fuel
costs may be an issue. Think slow for efficiency if possible.