Top Thrills for Your Holiday Buck Challenge yourself and whatever unfortunates you bring along in these nail-biting vacation adventures By Heather McPherson, Newser User Posted Aug 25, 2007 3:10 PM CDT Copied (Waitomo (http://www.waitomo.com)) See 1 more photo Timid vacationers whose idea of a good time is a book and a beach chair need not peruse this list of adventures, compiled by Forbes. Dive with sharks in the Bahamas (cagediver.com) Fly a fighter jet in California (incredible-adventures.com) High-altitude skydiving in Memphis (halojumper.com ) Train like a cosmonaut in Moscow (cosmonautadventures.com) Race-car driving in New Zealand (incredible-adventures.com) Extreme biking and ice-climbing in Bolivia (blacktomato.co.uk) Tectonic plate diving and snowmobile racing in Iceland (blacktomato.co.uk) Cave tubing in New Zealand (waitomo.com) See 1 more photo Report an error