[natwig]

Im trying to find out how to opan the ornimented door in Sea serpent Grotto. Any imfo would be nice thank you

[Jei]

You need Silver Beastcoin, Gold Beastcoin, Mythril Beastcoin x3, a norg shell and do this quest
http://wiki.ffxiclopedia.org/Sahagin_Key_Quest

[Arctic Wolf]

Source: ornimented door

To open the Ornamented Door:
Talk to Bou the Righteous at H-11 and then go to Hurr the Betrayer (located next to the Utsusemi:Ichi ??? behind the silver door) and he will ask for a norg shell and 3 mythril beastcoins. You can NOT zone between talking to Bou and Hurr or you will have to start over, so no {Escape}ing. Hurr will give you a sahagin key which will then break when you trade it to the Ornamented Door. To get more Sahagin Keys, you will have to trade a norg shell and gold beastcoin the next time. Mobs only aggro to sound, at least anywhere not behind the Oranemented Door.

I'm sorry, but I think it's better to search first before you ask.

Edit: Oh, someone was faster than me.

[natwig]

Thank you very much