The phrase "mysterious island" refers to an isolated landmass or location that holds secrets, unknown phenomena or hidden treasures that are yet to be discovered or understood. Full definition
In the game, which picks up where Hotel Transylvania 3 leaves off, Drac's Pack land themselves into hot water yet again — washed overboard and lost on mysterious islands. (perfectly-nintendo.com)
Rime is an open - world adventure game where you get to explore mysterious islands and solve puzzles. (gameidealist.com)
Set off on strange and mysterious island with Luigi as he start his own adventure. (kbhgames.com)