Mystery Island and Kapp'n Boat Tours Storage NPC by sploshfish
Based on ACNH Mystery Island Vendors by Alree https://gamebanana.com/mods/54529

Adds the NPC Tortimer to Mystery Islands and boat tour islands so the player can access their storage.

Instructions:
Atmosphere: Merge romfs folder from this mod with yours in atmosphere/contents/01006F8002326000

(Untested in emulators)