Twenty miles north of Marsh Harbour is Treasure Cay, technically not an island but a large peninsula connected to Great Abaco by a narrow spit of land. This was once the site of the first Loyalist settlement in Abaco, called Carleton.
While Treasure Cay is a large-scale real-estate development project, it's also a wonderful small community where expatriate residents share the laid-back, sun-and-sea vibe with longtime locals.
The development's centerpiece is the Treasure Cay Hotel Resort and Marina, with its Dick Wilson–designed golf course and a 150-slip marina that has boat rentals, a dive shop, pool, restaurant, and lively bar. Treasure Cay's commercial center consists of two rows of shops near the resort as well as a post office, self-service laundries, restaurants, a couple of well-stocked grocery stores, and BTC, the Bahamian telephone company. You'll also find car-, scooter-, and bicycle-rental offices here.