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
you can't
you get a starfish from museum of olympus on posidens face
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.
Kronos, a Titan