I just got back from a cruise that stopped in Nassau and used this forum to explore excursion options.  We ended up going on an excursion that I don't hear reported on very often and I wanted to promote it as we had a great time.  We did the combination snorkeling and heritage tour through the Clifton Heritage National Park.  It was a wonderful experience.  They book tours directly through their website: https://tourcliftonheritage.com/ The tour included personal pick-up/ drop-off directly