I ran the session and it worked out fairly well, with only a couple of glitches.
The party split up, so only 2 showed up as the Main baddie was escaping via row-boat with his prisoner tied up inside. He'd enlisted a rower as well as 4 thugs to watch the shore to prevent anyone from pursuing.
The first PC walked up to the thugs (she was female) and asked them if there was a party. She managed to waste some time (allowing her lingering party members to catch up before the fight started, but also allowing the boat to get a head-start). The thugs tried to jump her and "get their way" with her, but she's actually a half-ogre with human guise, so she just threw one in the turbulent water. Meanwhile her fellow PC had remained out of sight, thanks to the Awareness block. He ran up and pushed a second guy in the drink. That's when the rest of the party arrived.
The aquatic person jumped in the water after someone pointed out the boat, but never actually saw the boat until 4 exchanges in. (darn alertness block)
While the fight raged on shore(one thug climbed out of the water while the other flailed there fore the rest of the combat), the main Ranged guy, declared there was a harpoon and rope on hand and used craftsmanship to rig it to his musket (game takes place in 1600's). He then proceeded to declare a bolt of lightning outlining the boat and rolled a legendary guns maneuver to "tether the boat".
Finally, the aquatic PC saw the boat(thanks to the lightning), made his way out to the boat. While the wizard was trying to pry the harpoon off the boat, prisoner flung himself into the water for a rescue.
The half ogre flailed a while in a second boat before sprouting wings to fly at the water mage who promply hit her for 13 stress worth of damage. (good rolling vs bad defending) She conceded and helped the aquatic person get the prisoner to shore, where the battle on land was finishing up. The storm was starting to do damage at this point. The wizard got away, using a potion and a couple of FP's (to survive the storm)while his driver was not so lucky.
The aquatic PC helps the souls of drowned victims and has taken ghostspeaker...so it'll come in handy soon enough when the drivers body washes to shore.