Only 3 miles (5 km) from St. Thomas but still a world apart, St. John is the least developed of the U.S. Virgin Islands. While two-thirds of its tropical hills remain protected as national parkland, a bit of hustle and bustle has come to Cruz Bay, the island's main town. Accommodations range from world-class luxury resorts to top-notch vacation villas to back-to-basics campgrounds.

St. John's heart is Virgin Islands National Park, a treasure that takes up a full two-thirds of St. John's 20 square miles (53 square km). The park was spearheaded by Laurance S. Rockefeller and Frank Stick and was finally handed over to the Department of the Interior in 1956. The park helps keep the island's interior in its pristine and undisturbed state, but if you go at midday you'll probably have to share your stretch of beach with others, particularly at Trunk Bay.

The island is booming, and it can get a tad crowded at the ever-popular Trunk Bay Beach during the busy winter season; parking woes plague the island's main town of Cruz Bay, but you won't find traffic jams or pollution. It's easy to escape from the fray: just head off on a hike or go early or late to the beach. The sun won't be as strong, and you may have that perfect crescent of white sand all to yourself.

St. John doesn't have a grand agrarian past like her sister island, St. Croix, but if you're hiking in the dry season, you can probably stumble upon the stone ruins of old plantations. The less adventuresome can visit the repaired ruins at the park's Annaberg Plantation and Caneel Bay Resort.

In 1675 Jorgen Iverson claimed the unsettled island for Denmark. By 1733 there were more than 1,000 slaves working more than 100 plantations. In that year the island was hit by a drought, hurricanes, and a plague of insects that destroyed the summer crops. With famine a real threat and the planters keeping them under tight rein, the slaves revolted on November 23, 1733. They captured the fort at Coral Bay, took control of the island, and held on to it for six months. During this period, about 20% of the island's total population was killed, the tragedy affecting both black and white residents in equal percentages. The rebellion was eventually put down with the help of French troops from Martinique. Slavery continued until 1848, when slaves in St. Croix marched on Frederiksted to demand their freedom from the Danish government. This time it was granted. After emancipation, St. John fell into decline, its inhabitants eking out a living on small farms. Life continued in much the same way until the national park opened in 1956 and tourism became an industry.

Of the three U.S. Virgin Islands, St. John, which has 5,000 residents, has the strongest sense of community, which is primarily rooted in a desire to protect the island's natural beauty. Despite the growth, there are still many pockets of tranquility. Here you can truly escape the pressures of modern life for a day, a week—perhaps forever.