I always think fights with the opportunity to push foes into the water and vice versa are exciting. Should you want to go all out cinematic swashbuckling, two people with a rope strung between them cloths lining people off the dock, tossing a rope around someones leg after dropping an anchor in while the line plays out, and rolling barrels around. The stone landing map also has a few nice choke points and some height differences. The possibility of ships landing can become a fun timed missions as well. Trying to wipe out an enemy force before their reinforcements arrive to overwhelm the party or having the PCs have to survive long enough to catch their escape boat (knowing PCs probably from the local authorities).
