I've priced out flights into STT and EIS. As Manpot indicated there's a pretty sizable difference in $$$. We're coming down in July and this time, taking Dolphin Water Taxi to avoid the hassles and time constraints of the ferry. Additionally, they'll bring us directly to the Sunsail base. Dolphin's pricey, around $700 for 5 people, but the fare into EIS is roughly $300+ more per ticket, so we're still saving $800 and getting door-to-door service.