Stepping Back into the Ice Age--Bermuda has one of the highest concentrations of limestone caves in the world. Most began forming during the Pleistocene Ice Age. As early as 1623, the adventurer Capt. John Smith wrote that he had encountered "vary strange, darke, cumbersome caves."

In Bermuda, nature's patient, relentless underground sculpting has left behind a dream world for even the casual spelunker. Deep in the majestic silence of the earth's interior, you can roam in caverns full of great stalactites and stalagmites of Gothic grandeur, delicacy, and beauty. This awesome underground has been the inspiration for creative achievements as diverse as Shakespeare's The Tempest and Henson Associates' Fraggle Rock.

You can visit Crystal Caves on guided tours; the cave complex is along Harrington Sound Road in Hamilton Parish.

Historic Forts That Never Saw Much Action--From its earliest days, St. George has been fortified. Although it never saw much military action, reminders of that history are interesting to explore. Take Circular Drive to reach the forts, on the outskirts of town. As forts go, these two are of relatively minor interest (unless, of course, you're a fort buff -- in that case, be our guest). If you have time for only one fort on Bermuda, Fort Hamilton on Happy Valley Road is the most intriguing.

Along the coast is Building Bay, where the shipwrecked victims of the Sea Venture built their vessel, the Deliverance, in 1610.