you offer on the altar the starfish you got at the museum. then, you go onto a beach like area. than, you walk into the water and at one exact spot, your cursor will say "dive". Then , you click on it.
Dive below
you get the starfish from the museum and put in the offering table then you dive where the sea horse is shooting water.
You get hades crown and posidens trident.
You have to get a starfish as an offering to him. Same thing with Hades, you have to give him pomegrantes.
the trident is posidens weapon
It is said to be Neptune's kingdom. Although in Greek mythology Neptune is Poseidon, I believe his kingdom is called something else though. so the answer is no but technically it's yes!
you dive down underwater and you go into a cave
newdiv
On Astro Knights Island, the part of the quest that occurs on the planet Poptropica is in the kingdom of Arturus. The kingdom was attacked by robot invaders who have kidnapped the Princess.
you can't
you get a starfish from museum of olympus on posidens face
i assume this is about greek mythology island and to get to posiden first you have to go to the mythology museum and get the star fish from posidens statue then go to his temple and use it as an offoring to get into his relm. go into the water then dive. onec you get the 5 sacred items and zeus takes them and you get hercules to help you. use the majic mirror to get to the big rock blocking your way to posidens throne room. hercules will move the rock out of tyhe way.