well i got all my diving gear but now i can't find the lost sea again..How do i get back to the lost sea..what area of the map do i cross over from the enchanted sea to the lost sea??? thanks

You went through the Temple Shrine (of Anephas) and rode a thieve's lift up to the area you want to get back to.
This is a good time to plant a portal spell
(in the lost sea area) for going back & forth if you have the Teleport and Call of Home spells too.
: )
Moni