Waterton Shoreline Cruises
Upper Waterton Lake Cruises & hikes
Waterton Shoreline Cruises at the marina in Waterton run scenic two-hour cruises (May–Sept 2–4 daily; $61 return) up and down the lake across the US–Canadian border to Goat Haunt in Montana, little more than a quayside and park ranger station, where there's a scheduled thirty-minute stop before the return to Waterton.
You can also take an early boat to Goat Haunt and then return on foot along the Waterton Lakeshore Trail (one-way: 3.5hrs/13km/125m ascent), or use the same company’s ferry to hike to Crypt Lake (July & Aug 2 daily; $32).