Since Vivian is probably going to get more chests with additional cave systems probably being implemented as the game goes on, what if for some shells (10 min-50/60 max) she eats the player and releases them at a different chest area, could be for say the one where you first encounter it, to the one in her "shop".

Follow up, would it be possible to set up a meter for the NPCs, like to go along with the fast travel idea, the more you use her services, the higher the cost goes till the max you decide.

Game fun fact: Depending on where the tiger jumps when you're being chased by them, there is a chance it can get to the higher elevation and get you