My husband & I are divers we usually stay at Sandals Negril & are very excited to stay at Couples Sweptaway this year. We both dont keep log books. Will we have to pay anything extra we went divinig in St Lucia last December & will do 2 dives at Sandals Negril October 25th & 26th before we come over to Couples Sweptaway. Are there night dives offered also? How much?