I have two trinkets for the Omen Islands festival, but I can't afford the map. Is it possible to turn them in without being able to access Omen Islands? I got a trinket right after posting this. That's reaaal cute, Subeta. :P

Random Event
You've found an Uncharted Land Map Piece on the ground!

O_O; THERE /IS/ A GOOOOOOD! tries to resist screaming this IRL

No, you do need the map in order to turn in the trinkets unfortunately ^_^;