Not exactly glamping on a glacier, but spending the night on Juneau Icefiels was an incredible first. (Mendenhall Glacier, southeast Alaska)
First thing’s first
A little prep goes a long way: Sounds obvious, but before disappearing into the hinterlands, tell someone where you’re headed, determine what’s nearby (firewood, water and local regulations) and gauge the distance to civilization on a detailed map. Uber-remote camping may warrant investing in a satellite communicator to send and receive texts with GPS coordinates worldwide (e.g. inReach).