Hidden Chests you may have missed on Watatsumi and Seirai Islands [Genshin Impact][2.1] - YouTube
All Watatsumi Island Chests [Map + Guide] Genshin Impact | HoYoLAB
Inazuma Watatsumi and Seirai Island chests count? Genshin Impact | HoYoLAB
seirai island hidden chest|TikTok Search
I mostly mapped all the fruit locations in Seirai Island. If you gather all of them, it is enough to ascend Raiden Shogun to lvl 90. (Those Banner Icons are just challenge