Lighting lanterns among the glaciers

I'm still on vacation in Alaska, and today I'm doing an akari puzzle by Prasanna Seshadri. You can find this and many other wonderful puzzles at Prasanna's blog here: https://prasannaseshadri.wordpress.com/2021/08/01/puzzle-no-510-akari/ And try this puzzle yourself on puzz.link at https://bit.ly/3jVKWCr You can find my Pirate Puzzle Hunt here: https://scottstrosahl.com/2021/01/01/a-pirate-puzzle-hunt/