Cricket: Take a 15 minute-ish taxi ride to Crown Bay Marina. From there, the ferry runs once an hour, on the hour from Tickles Dockside Pub. The trip across takes less than 10 minutes. Fare is 10 bucks round trip.
When you get to water island, there's a free shuttle bus waiting that takes you to one of the 2 bars on honeymoon beach.. Easy peasy.
Pro Tip: Dinghey's bar charges for beach chairs, Heidi's does not....and I personally think the food is MUCH better at Heidis. Dinghey's is more of a sports-bar, party vibe, and Heidi's feels more like a local watering hole.