I think that coastal resources are too scarce so I added Reefs as another bonus providing feature to water-related abilities.
Features:
1. God of the Sea pantheon gives +1 Faith to Reefs.
2. Norway's Stave Church gives +1 Production to Reefs.
3. Aquarium gives +1 Science, and Stave Church gives +1 Production to Shipwrecks in the Ocean.
- Normally, only Shipwrecks in Coasts and Lakes count.
4. Harbor, Royal Naval Dockyard and Cothon get standard adjacency bonus (+1 Gold) from Reefs.
Features:
1. God of the Sea pantheon gives +1 Faith to Reefs.
2. Norway's Stave Church gives +1 Production to Reefs.
3. Aquarium gives +1 Science, and Stave Church gives +1 Production to Shipwrecks in the Ocean.
- Normally, only Shipwrecks in Coasts and Lakes count.
4. Harbor, Royal Naval Dockyard and Cothon get standard adjacency bonus (+1 Gold) from Reefs.