"one of frank's friends needs a favor"
Another trip to the Marina in this mission, as we need to procure a boat, called "Sunny Side up", for Reverend Warren Goodman. Head to the objective marker once the cut scene ends. Once you get there, you will find a Businessman (the guy whose boat Goodman wants) being accosted by some gang members. Apparently he's behind on some gambling debts. We want to protect him in order to get the boat from him, so run in there and deal with the thugs.
Once you've cleared the area, you are able to go and steal the boat that's moored at the docks. You need to pilot it through the river channels and to the Marina. Check your map if you need help plotting a route there as it can be tricky. Just concentrate on not beaching the boat on any of the small islands or the shoreline.
Once you reach the Marina and dock the boat, the mission is completed.
Reward: G110,000, Respect: 435,000
Note: Having completed this mission, you unlock lots of boat-related diversions and side quests.