Mountain Stream Grotto — Technology Book chest 50% Mountain Stream Grotto II — Technology Book chest 50% Hillside Cavern — Technology Book chest 50% Ravine Grotto — Technology Book chest 50% Sunreach Skies — Technology Book chest 33.33% Yakushima — Tier 2 32.97% Cavern of the Dunes — Technology Book chest 32.32% Cherry Blossom Cave — Technology Book chest 32.32% Astral Mountains Cavern — Technology Book chest 32.32% Feybreak Cavern — Technology Book chest 32.32% Volcanic Cavern — Technology Book chest 32.32% Astral Mountains — Tier 2 23.82% Grasslands — Tier 2 23% Mount Obsidian — Tier 2 22.91% Desert — Tier 2 22.28% Sakurajima — Tier 2 21.91% Forest — Tier 2 19.58% Feybreak — Tier 2 17.47% Sunreach Skies — Tier 2 17.46%