The Trembling Lagoon and A Meeting of the Minds use the same instance zone. The entrance to the zone is in Ferrott.
Not having done this before I ran the tunnel entrance (centerline) the outer line (complete circle), the pond (complete circle), the ocean shoreline (complete circle), and the big island in the bay (complete circle). Each as seperate lines, most with an added emote for which line the following locs were for.
Only a few POIs will be needed for the camp on the beach, the ruins, and the named MOBs on the island for each instance.
The cache file is: feerrott+feerrott_epic01_temple.iop
Looks like my screenshots didn't take a good sample of the ground, although it should be the same as Ferrott.