What is the legendary pokemon in pokemon emereld?(the one in the sea)

I’ll have to ask my 6 year old nephew. :)

There is Rayquaza the one from the cover (not the water one). There is Groudon, the one that is ground (not there yet…) Last, there is Kyogre, which is the one you are thinking of.

Kyogre is the one from the sea. :)

(When you click on the links, look at the page from Bulbapedia. The top link in each search. )

By mouses 9 year old son, the legandary pokemon for emrald is rayquaza.

by mouses 9 year old son, the legandary pokemon for emrald is kyogre

Kyogre