We'd like to try the water taxis as least once during our stay at Aventura. Given it's sharing the same plot of land, basically, and not across the road like CBBR (whose guests already make use of the water taxis, though CBBR doesn't go out of its way to make it known that their guests can walk over and use the taxis), I'm thinking the water taxis will be a popular option for people who know about them. In the reverse, Sapphire will be connected to Aventura's walking path to Volcano Bay. I'm not sure how easy it was to walk from Sapphire to VB, but this is another option for people who don't enjoy the buses. I'm not sure how long the buses take from the various resorts to VB.