Rafting Tasmania. This reputable and long-established outfitter provides five-, seven-, and 10-day trips from November through March on the wild and remote Franklin River. Campsites are set up along the banks of the mighty waterway. Prices include transport to and from the river from Hobart and then back to the city. 683 Summerleas Rd., Fern Tree, TAS, 7054. 03/6239–1080. www.raftingtasmania.com.
Arthur River Cruises. For a more serene time, Arthur River Cruises runs five-hour boat trips on a beautifully preserved old steel craft along a section of the river 14 km (9 miles) south of Marrawah. Glide through pristine rain forest unchanged for centuries. 1414 Arthur River Rd., Arthur River, TAS, 7330. 03/6457–1158. www.arthurrivercruises.com. A$95.
Gordon River Cruises. These six-hour cruises cost A$195 and cover Macquarie Harbour—a vast body of water that's six times larger than Sydney Harbour—and the Gordon River including a delicious smorgasbord lunch. An informative commentary accompanies the trip to historic Sarah Island, and you can disembark at Heritage Landing and take a half-hour walk through the vegetation to a 2,000-year-old Huon pine tree. Reservations are essential. 24 Esplanade, Strahan, TAS, 7468. 03/6471–4300. www.gordonrivercruises.com.au.
World Heritage Cruises. One of Tasmania's larger tour operators, this company offers leisurely half- and full-day cruises from Strahan Wharf, pausing at Sarah Island, Heritage Landing, and the Saphia Ocean Trout Farm on Macquarie Harbour. Onboard meals are available. From November through April, they also operate the luxury three-day and two-night Wilderness Escape Cruise on the MV Discovery; limited to 24 passengers, this is the ultimate way to experience the Gordon River. The Esplanade, Strahan, TAS, 7468. 03/6471–7174. www.worldheritagecruises.com.au.