I'm talking only about the regular FH.
These are the places (all public) I've found in the game:
Lonely Cave
Ficho Tunnel
Fluorite Plains
Temple of Dreams
Bonfire Island
Cape of Distant Worlds
South Pole
Atlantis
Last Cave (Inside Atlantis)
Ascension Island
Sky's Rim
Are there any more public maps like these out there to discover?
Also.. in the Ficho Tunnel map, do I need FH + to get up to the top or something? That place above the "ceiling" of the tunnels?