Nassau is only 186 miles from Miami in the Atlantic Ocean, making it a popular destination for about 3.5 million tourists annually looking for sun, sand and warmth without the burden of extensive travel. Nearly 70% arrive for a single day aboard a cruise ship. The peak month is in March and the busy season extends into August. Surprisingly, November and January are relatively slow. This is when you can often get great prices on three or four-day cruises through the Bahamas.