What Makes a Marina Hard to Dock?

Room to turn

The fairway is the lane of water between two rows of docks. You drive down it, then turn into your slip. If it is wide compared with your boat, you have room to swing, stop and correct. If it is tight, every turn has to be right the first time.

DockWise measures fairway widths from the marina's layout. Where a marina has several fairways, the narrowest one sets the limit for that part of the marina. I review and confirm the widths on the marinas I have mapped.

How the slips line up with the wind

Every marina has a prevailing wind, the direction it blows from most often. DockWise uses each marina's saved historical prevailing wind, not today's forecast. When that wind blows along your slip, the boat goes where you point it. When it blows across the slip, it pushes you sideways as you turn in.

That is why two marinas with the same layout can grade differently, and why the same marina can feel easy one day and hard the next when the wind shifts.

Where your slip sits along the fairway

This is the one most people miss. If the prevailing wind crosses a fairway at more than 45 degrees, you spend the whole run down that fairway with the wind on your side. My fairway-thirds rule grades slips in the entrance third a step easier than the marina's baseline, the middle third at the baseline, and the shore-end third a step harder.

When DockWise can't tell where a slip sits along its fairway, it holds that slip at the marina's baseline and says so, rather than guessing it easier.

Your boat and you

• Longer boats add difficulty for every foot over 35 feet, up to a cap.
• High-sided boats, pontoons and sailboat hulls catch more wind.
• A single engine adds difficulty, and a bow or stern thruster reduces it.
• Your experience matters. A Readiness score in the lower bands makes the same slip one step harder.

What DockWise doesn't measure yet

River current, waves and boat wakes all make docking harder, and they aren't in the grade yet. On a river marina, or at an open-lake harbor entrance in an onshore wind, add them on top of what the grade tells you. Today's actual weather is separate too: the baseline is about a typical day.

Why a hard marina isn't a bad marina

A C or D docking baseline doesn't mean a marina is poorly run or a bad place to keep a boat. Some of the best-loved harbors on the Great Lakes are tight because they were built long before today's boats got bigger. It simply means you'll want more skill, a better-suited boat or an easier slip there. Plenty of experienced boaters choose a harder marina for its location and enjoy it every season.

Reading a marina before you arrive

1. Look up its docking baseline on DockWise.
2. Check which way its prevailing wind blows and how the docks run.
3. Find your slip and see which third of the fairway it's in.
4. Ask the dockmaster about current, traffic and help on windy days.

Your next steps

1. Take the free Readiness report (about 10 minutes). It shows where your docking skills are strong and where to practice.
2. Find your marina's docking baseline on DockWise, then tap your own slip to see its free grade.
3. If your slip grades hard for you, a lesson with a local captain through Ravo in that marina is the quickest way to make it easier.