While visiting Atlantis in Fisch, you will find many trials, but Poseidon Temple is probably one of the most interesting, in particular because of the hidden stuff you will find there. However ...

Cape Sounion and Temple of Poseidon Half-Day Small-Group Tour from Athens (2670 reviews) Athens Half Day Tour, Acropolis, Parthenon, Temple of Olympian Zeus & Hephaistus ...