Coral Hill

Coral Hill (サンゴが丘) is a port town on Fishman Island. The Mermaid Cafe is located here. It also appears to be the main town in the storyline.

Mermaid Cafe
The Mermaid Cafe (マーメイドカフェ) is a restaurant owned by Madame Shirley in Coral Hill. Keimi and several other mermaids work here. The cafe's employees all live in the same dormitory in Mermaid Cove. It first appeared in Chapter 610.

The cafe's menu includes: cake, sea fruits, wakame seaweed brulee, mozuku seaweed tarts, konbu kelp souffle, shellfish meat, scallop sandwiches, and shijimi clam pizza.

The cafe is apparently very popular, as one of Gyro's crew member's dream was to visit it, and was incredibly disappointed to be deprived of it, despite the danger they were in.