Closing Up for the Season: An End-of-Season Checklist for Northern Cabin Resorts

By CabinKey Team · Oct 8, 2026

There is a particular quiet that settles over a northern resort after the last family pulls out. The lake goes still, the maples turn, and for the first time since May nobody needs anything from you before breakfast. It is tempting to treat that moment as the finish line.

It is really the starting line for next season. Time spent closing up carefully in the fall usually means fewer surprises in the spring, and a few decisions you make in October, like who gets first choice of next summer’s calendar, can shape the year ahead. If you run a family fishing resort in Minnesota, Wisconsin, or Michigan, this checklist walks through closing the property and the business side of the season, so you can head into winter with fewer loose ends and a head start on next summer’s bookings.

Treat it as a starting point, not a substitute for knowing your own buildings. Every resort’s plumbing, appliances, heat, and waterfront are different, so follow the manufacturer’s instructions for your equipment and bring in a qualified plumber, electrician, or marine technician for any system you are not sure about. It pairs with our pre-season checklist for fishing cabin owners, which picks up where this one leaves off.

Why a Closing Checklist Pays Off in the Spring

Most resort owners have closed up enough times that it feels like muscle memory. That is exactly the problem. Muscle memory skips steps when you are tired, when the weather turns early, or when a family member who usually handles the water lines is not around this year.

A written checklist does three things for you:

• It protects the property. One missed drain valve can mean a split pipe, a ruined water heater, and a flooded cabin you will not find until April.
• It turns the season’s lessons into next season’s plan. What broke, what guests complained about, and what you swore you would fix are all fresh right now. By spring they are fuzzy.
• It lets you hand off work. Staff and family can work from the same list, and you can trust that “done” means done.

Keep the list somewhere everyone can find it, check items off as you go, and add notes for anything that needs attention next year.

Before the Last Guests Leave

Some of the most valuable closing work happens while guests are still on the property.

• Invite returning families to rebook. At checkout, let your regulars know they can lock in the same cabin and week for next summer before the calendar opens to everyone else. A family that just had a great week is often in the mood to commit.
• Ask what could be better. A quick, sincere “anything we should fix before next year?” at checkout gets you honest feedback you will not find in reviews.
• Walk each cabin with fresh eyes. As cabins empty for the last time, note anything worn, broken, or overdue: a sagging mattress, a sticky window, a stained couch, a dripping faucet.
• Note what guests left behind. Lost-and-found items are easier to return in September than in November.

Winterizing the Cabins

For cabins that will sit unheated through a northern winter, water is the enemy. Anything left in a pipe, trap, tank, or appliance can freeze, expand, and crack. The right steps depend on how each cabin is plumbed, so if you are not confident about a layout, have a plumber walk through it with you once and write the steps down cabin by cabin.

Winterizing a cabin commonly involves:

• Shutting off and draining the water. Close the supply, open the faucets, and drain the lines to their low points. Some resorts also blow out the lines with compressed air; if you do, follow a plumber’s guidance on pressure and procedure.
• Draining the water heater. Turn off the power or gas first, then drain it following the manufacturer’s instructions.
• Protecting traps and toilets. Flush toilets and remove what water you can from the tank and bowl. Many owners then add antifreeze to toilets, traps, and floor drains. Use only a non-toxic antifreeze labeled for RV or potable plumbing use, never automotive antifreeze, and follow the product label and your septic system’s guidance.
• Emptying the appliances. Clear the refrigerator and freezer, clean them, unplug them, and prop the doors open to prevent mold. Check the manuals for dishwashers, ice makers, washing machines, and anything else that holds water, since each has its own draining steps.
• Remove anything that can freeze or attract pests. Food, cleaning liquids, soaps, and paint all come out.
• Rodent-proof. Seal gaps around pipes and vents, close the dampers, and set traps or deterrents. Mice can do a remarkable amount of damage to mattresses and linens over one winter.
• Pull or protect the soft goods. Take linens, pillows, and towels to dry storage, or seal them in tubs. Stand mattresses on edge or cover them.
• Close it up tight. Latch windows, check door seals, close the curtains, and leave a note inside listing exactly what was done and the date.

For any cabin you keep heated through the winter, set a minimum temperature, test the heat source, and decide who checks on it and how often, especially after a cold snap or a power outage.

Water, Septic, and Utilities

The systems that serve the whole property need their own pass.

• Wells and pump houses. Shut down and drain anything that will not stay heated, and confirm any heat tape or pump-house heater is working if it will.
• Hoses and spigots. Disconnect, drain, and store every hose. For outdoor spigots, shut off the indoor supply valve where there is one and drain the fixture according to its type; frost-free spigots and yard hydrants each have their own procedure.
• Septic. Check your pumping schedule and book a pump-out if one is due. It is often easier on dry fall ground than in spring mud.
• Propane. Shut off tanks to cabins that will be closed, and schedule a fill for any that stay in use.
• Electrical. Turn off breakers to unused cabins, except anything that powers heat, sump pumps, or security lights.
• Fish-cleaning house. Clean it thoroughly, drain all water lines and grinders, and shut it down.

Docks, Boats, and the Waterfront

On most northern lakes, the docks and lifts have to come out before ice forms, and the timing is easy to misjudge after a warm October. Put it on the calendar early.

• Docks and lifts. Pull them, inspect for damaged sections, worn decking, and loose hardware, and store them above the ice line. Write down what needs repair over the winter.
• Swim rafts and buoys. Bring them in and note anything that needs replacing.
• Rental boats and motors. Follow the manufacturer’s winterization steps or have your marina handle it. That usually means treating or draining fuel, fogging the engine, changing the lower unit oil, and draining any water that could freeze.
• Paddle gear. Rinse, dry, and store kayaks, canoes, paddleboards, and paddles out of the weather.
• Life jackets. Dry them completely before storing, count them, and toss any that are torn, faded, or missing straps.
• Shoreline. Clear the beach and waterfront of anything ice could push or crush.

If you rent boats and pontoons to guests, fall is also the time to decide what to repair, replace, or add next season. Our guide to growing revenue with boat rentals and add-ons covers how to price and manage them.

Grounds and Buildings

• Roofs and gutters. Clear leaves and check for loose shingles or flashing before snow load arrives.
• Trees. Look for dead limbs hanging over cabins, power lines, and parking. Fall is a good time for tree work.
• Outdoor furniture. Store chairs, picnic tables, grills, and anything that can blow around or crack.
• Fire pits and grills. Clean them out and cover or store what you can.
• Playground and games. Inspect equipment and note repairs. Bring in nets, horseshoes, and anything small.
• Signs and lighting. Note what needs repainting or replacing, and confirm any security lighting still works.
• Vehicles and equipment. Winterize mowers, golf carts, and trimmers, and get the plow or snowblower ready.

Take Inventory While It Is Fresh

Before everything goes into storage, count it. You will thank yourself in April.

• Linens, towels, and pillows by size and condition, with a list of what to replace
• Kitchen items per cabin: missing pans, chipped dishes, broken coffee makers
• Cleaning supplies and paper goods on hand
• Spare parts, filters, light bulbs, and batteries
• Camp store or bait shop stock that needs to be sold, stored, or written off

Then make one master project list, cabin by cabin, ranked by priority. Some projects make sense over the winter, some need warm weather, and some need to be budgeted. Seeing them all in one place helps you decide.

Review the Season While the Numbers Are Fresh

The property is not the only thing worth closing out carefully. A couple of hours with your season’s numbers will tell you more than any amount of guessing next spring. Look at:

• Occupancy by cabin and by week. Which cabins were always full? Which sat empty? Which weeks had gaps?
• Your shoulder seasons. How did late May, June, and September perform compared to peak summer?
• Repeat guests. How many families came back? Who skipped this year, and why might that be?
• Revenue beyond the cabins. What did boat rentals, bait, firewood, and other extras bring in?
• Payments still open. Any balances, deposits, or refunds that still need to be settled before you close the books.

Use what you learn to set next year’s rates, stay rules, and priorities. Our article on peak vs. off-season booking trends has more on reading those patterns.

Open Next Summer to Your Regulars First

One fall task can pay off directly. Before you open next season’s calendar to the public, give your past guests a head start.

A simple email in the fall works well: thank them for the season, share a highlight or two, and let them know they have first choice of their favorite cabin and week until a specific date. Families who come back every year appreciate being remembered, and you may fill part of next summer before winter even starts. For anyone who did not return this year, our guide on winning back repeat guests covers how to reach out without coming across as pushy.

If you plan to stay open for ice fishing, hunting, or winter getaways, fall is also when to finish winterizing those specific cabins and start promoting them. Our guide to off-season revenue for northern resorts covers what that takes.

Your End-of-Season Closing Checklist

Here is a condensed starting point to adapt to your own property, print, and hang in the shop:

• Invite returning guests to rebook next summer at checkout
• Walk every cabin and record repairs and replacements
• Drain water lines, water heaters, and outdoor spigots per each system’s instructions
• Protect toilets, traps, and drains with a non-toxic, plumbing-safe antifreeze where appropriate
• Empty, clean, unplug, and prop open refrigerators and freezers
• Remove food, liquids, and anything that attracts pests
• Rodent-proof cabins and store linens and soft goods
• Shut down wells, propane, and breakers as needed
• Schedule a septic pump-out if due
• Pull docks, lifts, and swim rafts before ice forms
• Winterize boats, motors, and small engines
• Dry, count, and store life jackets and paddle gear
• Clear roofs and gutters and check trees over cabins
• Store outdoor furniture, grills, and games
• Take inventory of linens, kitchen items, and supplies
• Build a ranked project list for each cabin
• Review occupancy, repeat guests, and add-on revenue
• Settle open balances and close the season’s books
• Email past guests with first choice of next summer’s dates

Close the Season With Next Year in Mind

The business side of closing up is easier when your records are already in one place.

CabinKey keeps every reservation, payment, and guest in one system, so reviewing the season is a matter of pulling up reports on revenue by cabin and payments by date range instead of piecing it together from notebooks. Your guest history shows who stayed in which cabin and which week, which makes it easy to reach out to your regulars first. When guests check out, CabinKey’s automatic thank-you email includes links to book their next visit, and your calendar is ready to take next summer’s reservations the moment you open it.

Winter is a good time to set up a new system before the phone starts ringing again. See how CabinKey works.

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