If you prefer your adventures to be a mix of stunning natural sights and the easy-and-gentle side of the spectrum, hop the Alaska Railroad to Spencer Glacier. The train trip south provides plenty of “oohing” and “aahing” as you gaze out on Turnagain Arm and its mountains. Enjoy a snack along the way. Yes, this one is all about relaxation. Once the train gets to Spencer Glacier, stroll down the wheelchair–accessible mile–long trail. At the lake, there are many options, including a float trip past icebergs and out to the glacier; a slightly more energetic kayak trip; or, if you really want to get up close with the glacier, ice climbing. (That last one leans more hard-core—and will give you undeniable adventure cred back home.)