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Multi-Day Dry Bag Plan for River Tubing

What a multi-day float demands of every bag

A one-day float asks a bag to survive a few dunks. A three-day float asks it to survive continuous immersion zones, six to eight hours of dragging contact per day, four nights of dew at maybe 8 °C, and repeated loading against sharp sand while you strap it down. Very little of that involves clean water: river silt is finer than beach sand, stays in suspension, and works into every fold and buckle it touches.

The second detail matters: a tubing load sits low, so a bag that comes loose is going into the water with the current pushing it. Everything must be both separable and attached, meaning a quick-release lashing that can be undone one-handed in cold hands. Design the system around that contradiction, because the alternative is either a bag you cannot access or a bag you lose at the first riffle.

Volume planning per person across three days

Start from volume rather than weight, because tubes care about bulk per strap far more than kilograms. A realistic float is 20 to 22 litres for the sleep system, 14 to 18 litres for clothing, 12 to 15 litres for food and cooking, and about 5 litres of reachable daily items. Everything above those numbers is comfort padding that will get wet, so spend your weight budget on dry bags rather than on extra clothing.

Those figures assume summer conditions with night temperatures of 8 to 12 °C. Drop the overnight low to 2 °C and the sleep system grows by roughly 5 litres and 1 kg, which usually means upgrading the 20L clothing bag rather than squeezing it. Use a shared shelter bag between two people and rotate who carries it each morning; resentment at camp is mostly about unbalanced loads rather than about distance travelled.

Three waterproof tiers instead of one

Sorting gear into tiers beats trying to waterproof everything equally. Tier one is the always-bone-dry category: sleeping bag, sleep clothing, insulation and electronics. Tier two tolerates damp because it will be used wet anyway: camp shoes, swimwear, quick-dry towel. Tier three is sacrificial: anything that can get thoroughly soaked without consequence, such as a dry change of shorts you intend to swim in.

Assigning a colour to each tier makes the system work on a tired evening. Orange or mint for the always-dry tier, olive for items that tolerate damp, and black for sacrificial kit saves opening three bags in the dark to find the one you want. Colour coding also settles arguments about responsibility when two people share a tube.

The smell-proof tier is the one people skip and later regret. Raccoons, deer and occasionally bears investigate food odour at gravel-bar camps where there is no tree tall enough to hang anything. A sealed roll-top suppresses far more odour than a stuff sack, and combining it with a night cache 30 m from the sleeping area removes most of the risk without carrying bear canisters.

Lashing bags to a tube without losing them

Tubes have no hard points, which is the core problem. Everything you attach attaches either to the tube handles, to the valve, or to a rope girth you create yourself. The most reliable method is a 6 mm cord passed under the tube at two points, forming a saddle that the bag sits in, with two side straps taking the load when the tube rotates. A single centre strap allows the whole assembly to swing under the tube in rapids.

Use two attachment points per bag and keep the quick-release side oriented toward your body. Carabiners rated above 4 kN are overkill; what matters is that the gate cannot open under vibration, so screw-gate or locking types only, and never a plastic clip that UV has chalked for three summers. Expect each lashing to take a 12 to 18 kg load in static conditions and brief shock loads above 30 kg when the tube drops through a riffle.

Abrasion: what dragging over gravel does to film

This is the hidden killer of multi-day floats. A bag strapped to a tube touches something abrasive for most of the day: wet sand at maybe 60 grit equivalent, gravel with edges sharp enough to score, and occasionally submerged wood. At a drift speed of 3 km/h that contact is gentle but continuous, and over six hours it removes more material than a single violent scrape would.

Film thickness is the defence, and 0.3 mm is not enough for anything strapped low on the tube. A 0.5 mm TPU laminate with a 500D face fabric typically survives a full three-day float with visible scuffing but no loss of integrity, while thinner film comes back looking frosted and may have lost 15 to 20% of its thickness in the worst patches. If you own both grades, put the thick-film bags low and centre, and the light ones high and dry. More on this in our notes on TPU abrasion behaviour.

The second thing worth knowing is that abrasion and pressure interact. A bag wedged tightly between tube and frame carries a concentrated load at one point rather than spreading it, and the combination of pressure plus movement removes film much faster than movement alone. Loosen each strap by enough to slide a flat hand underneath, then check again after 30 minutes, because wet webbing stretches during the first hour of every float.

Food, cooking and smell control at gravel-bar camps

Multi-day food planning is mainly a moisture problem. Everything arrives pre-wrapped in a wet environment, and once packaging is opened it cannot be resealed against river humidity. Portion each meal into sealed pouches before the trip, then put those pouches inside a 10L roll-top so there is a second barrier between your dinner and the river. Cook 30 m downwind of where you sleep and treat grey water as something to carry rather than scatter.

Trash is the practical test of how well a group organises itself. Microtrash, twist ties, foil corners and bottle caps end up in gravel no matter how careful everyone is, which is why the 5L grab bag doubles as the daily rubbish bag. Everything comes out with you, and it all needs to be inside a sealed bag at night for the same odour reasons as food.

Keeping a sleep system dry for three nights running

The sleep system is the only category with zero tolerance for failure. A damp sleeping bag at 8 °C is not an inconvenience; it is the difference between rest and a genuinely cold night. Pack it in a 40L bag that is only 60% full so there is slack film to roll three times, then press the air out with your forearm rather than with your whole body, which avoids forcing air past the fold.

Double-bagging is worth the extra gram when the forecast is uncertain: sleeping bag inside a compression sack inside the roll-top gives two seals on the item you would pay most to replace. Our site guide to choosing a size for a sleeping bag covers how much slack to leave, and the general review in wild camping packing notes applies directly to riverbank camping.

Daily rhythm: pack order and the evening dry-down

Every float benefits from a fixed order, because searching costs daylight. In the morning, the sleep system goes in first and low, clothing second, food last and accessible, and the grab bag is clipped on only when you are ready to push off. In the evening, reverse the order but add a sorting step: dry things stay dry, damp things get an hour on a rope line before dusk, and nothing goes into a bag that will be sealed overnight.

Build slack into that schedule. The line nobody plans for is the unplanned swim, the stuck tube, or the gravel bar that turns out to be privately owned. Thirty minutes of slack per day is what keeps the rhythm humane, and it is usually spent drying something.

Then there is the dust that arrives with the wind. Mid-summer river corridors generate their own breeze each afternoon, and a fine layer settles on every horizontal surface within 20 minutes, including the mouth of any bag left open while you sort kit. Keep the roll open for seconds, not minutes, during the evening re-pack.

Cold water, sun and storms on a slow river

Tubing exposes you to two extremes at once: skin in 18 to 22 °C water for hours while your head sits in 30 °C air at a UV index near 9. Sun protection has to be reapplied every two hours because no application survives a swim, and it needs to be in the grab bag rather than buried with the clothing. Hypothermia signs show up quietly on long floats; shivering and fumbling fingers are the early warnings, not the late ones.

Weather is the variable worth planning around. Afternoon thunderstorms build on most summer river corridors, so check forecasts each morning and plan to be off the water by 15:00 when convection is likely; forecasts from NOAA cover most US watersheds including river stage. Water quality matters too after heavy rain, since runoff raises bacterial load considerably, and the recreational-water pages at the CDC explain why nobody should swallow river water on day three.

Failure modes seen after a three-day float

• Frosted contact patches where a bag sat low on the tube and abraded for 20 hours.
• Silt-packed buckles needing over 60 N to release, sometimes doubled to jam entirely by day three.
• Sauce residue and crumbs inside food bags drawing wildlife within 30 m of the sleeping area.
• Sleeping bags compressed too hard at pack time, losing loft worth 2 to 3 °C of comfort.
• Grab bags lost overboard because they were clipped rather than lashed at two points.
• Print and colour fading faster than expected due to constant wet reflections off moving water.

Nearly all of these are prevented by either better lashing or better daily sorting. The frosted patches are the only genuinely irreversible item, which is why a cheap sacrificial layer between bag and tube pays for itself: an old foam pad or even a cut section of closed-cell mat takes the abrasion instead of the film, and costs almost nothing to replace.

Budget for wear rather than pretending it will not happen. A heavy float season costs roughly one contact patch repair per large bag and one set of webbing between trips, which is far cheaper than replacing a 40L bag that abraded through because nobody noticed the frosted patch in July. Track those costs and you will start rotating bags before they fail.

River-specific numbers worth remembering

Float speed on a lazy summer river runs 2 to 4 km/h, so a 20 km day is genuinely a full six to eight hours including stops, and the sun exposure clock runs the whole time. Rivers also change stage overnight; a gravel bar that looks permanent at 18:00 can be 300 mm under water by breakfast after upstream rain, so nothing important gets stacked lower than 500 mm above the waterline.

Sandbars hold daytime heat far longer than grass camps do. Surface temperatures of 45 °C at 16:00 are normal on dry gravel, and a black bag laid directly on that surface ages quickly and can soften prints. Everything goes on a tarp, a towel, or in the shade of the tube itself; three minutes of arranging prevents three seasons of regret.

Budget for wear rather than pretending it will not happen. A heavy float season costs roughly one contact patch repair per large bag and one set of webbing between two trips, which is far cheaper than replacing a 40L bag that has abraded through because nobody noticed the frosted patch in July. Track those costs and you will start rotating bags before they fail.

Multi-day tubing checklist

• Four bags per person: 40L sleep, 20L clothing, two 10L for food and cooking, 5L grab bag.
• All straps doubled and quick-release points turned toward you before every launch.
• Thick-film bags placed low and central where abrasion is worst.
• Sleep system double-bagged with slack for three folds and never compressed to the limit.
• Food and trash sealed inside one smell-proof roll-top, cached 30 m from camp.
• Reapply sunscreen every two hours and be off the water by 15:00 in storm season.
• Nothing stored lower than 500 mm above the waterline at night.

Trip organisers, clubs and resorts running float packages can turn that checklist into a specification: bag count, size split, film thickness, strap geometry, colour coding and test standard are the six lines that decide whether kit survives a season of commercial use.

Two companion guides cover adjacent ground if this is your first float: the canoe camping load plan uses the same tiered structure with paddles involved, while the weekend capacity guide scales down for shorter trips. Compare sizes in the roll-top dry bag range, browse formats across the full product line, or read about higher-risk water in packrafting durability notes.