NBC's Web site will follow a crew of 16 environmentalists on a tour of the Galapagos Islands. The tour is sponsored by NBC and TerraQuest, a programmer of Internet-related travel events. Team members will send back daily photos, audio reports and a written diary. The tour follows on the heels of NBC's Everest Assault '96 site, which tracked several climbers on Mt. Everest earlier this month. That site generated a significant amount of traffic, probably because several climbers on various expeditions were killed when bad weather struck the mountain.