Coastal season kit, read from the tide table

A shallow bay does not keep its water. Twice a day it empties and fills, and the depth over the bar outside a harbour goes from enough to not enough in a few hours. Kit used on that water is chosen twice over: once for the state it is in when work starts, and once for the state it is left in when the water goes away and the salt dries on everything that stayed behind.

How do the tides work at Rock Harbor and when can boats leave?

A semidiurnal coast gets two highs and two lows in a little over a day of clock, with roughly six hours and twelve minutes from a high to the next low, and a full cycle back to the same tide a little over twelve hours later. That is why a departure time is rarely the same two days running. The window slides, and a boat that cleared the channel at eight in the morning one week leaves in the early afternoon a week later.

On a shallow coast the tide is only half of the problem, because the water is thin and the channel is narrow. A boat needs depth over the bar to leave, and room and flow to come back; a falling tide closes the window early, a rising tide opens it late, and a steady wind can push water out of the bay and take away an inch the table did not mention. The useful habit is not memorising the table but reading two numbers together: the height of the water and the time left before it turns. The mechanics of that cycle, including the difference a wind makes to a predicted height, are set out in the tide entry on Wikipedia.

The Billingsgate Journal, published on the roxysportfishing.com domain, keeps the harbour end of that arithmetic: the rock harbor tides navigable window that decides when a boat can leave, how the channel fills and empties across a season, and the safety that begins with knowing what the water will be doing by the time the boat comes back.

What can I expect to catch in Cape Cod Bay in each month of the season?

The bay does not fill on a fixed date. Water temperature does the deciding, and temperature follows the weather rather than the calendar, which is why two seasons never run on the same dates. The shape of the season is still readable. The cold months are the quiet ones, and the fishing opens as the shallows warm: striped bass move onto the flats and along the channel edges to feed as the bait arrives, bluefish follow the warm water inshore through the summer, and the bluefin season sits later in the year, further out, held by the bait schools offshore. A cold spring pushes all of it back; a warm one brings it forward.

A month by month reading is therefore a local record rather than a rule, which is why it is kept as a season calendar by the people who fish the bay. The water itself behaves as it does everywhere on this coast, and the basin it fills is described in the Cape Cod Bay entry on Wikipedia, from the hook of the outer Cape to the shallows that make the bay a nursery.

What salt does to a kit

Salt is the part of a coastal season that keeps working after the day is over. It holds moisture against metal, so a hook, a zip, a buckle or a fitting left unrinsed corrodes from the edges inward. It stiffens cloth that dries in the sun, and it leaves a film on anything that was wet when it came out of the water. The answer is dull and it is the same answer the room gives for any membrane: rinse in fresh water, dry in the shade, and never store anything wet inside a closed bag. Rain shells, dry bags and any garment with a water-repellent finish are read the same way in the waterproof entry, where the membrane does the stopping, the seams do the sealing and the finish does the shedding.

The dry list

Reading a season on a shallow bay also means reading it backwards. A departure is planned from the return, because a boat that has to be back on the trailer before the water leaves needs a window that covers the whole day rather than the morning alone. That is why the table is read the night before rather than at the ramp, and why the same two numbers, height and time, are worth writing down beside the kit list. A window that closes at noon is a short day whatever time the alarm went off.

What a coastal season adds to a bag is mostly about keeping water out of places it does not belong. A dry bag for a phone and a paper chart, a second towel because the first is wet by mid-morning, one layer more than the forecast suggests, and a pair of sunglasses that cut glare off flat water rather than merely darkening it; the frames and tints that work in low light are ranged in the sunglasses aisle. Gloves and hands get their own attention, because a wet hand on a wet handle is the same problem in every sport played with a grip, and it is ranged in the grip entry.

The habits of a weekly season carry over almost unchanged. Kit is unpacked and rinsed the day it comes home rather than the day before it is needed, a fixed place holds each small item, and the spare of anything that gets wet lives in the bag permanently. The gear used across a season of weekly games, packed and unpacked in a town, is read in the league play kit, and the two lists overlap more than they differ.

Water that arrives and leaves on a schedule is easier to work with than water that surprises, once the schedule is understood. A tide table, a rinse, a dry bag and a kit unpacked the same night will carry a season; the discipline that keeps a bag working in a town keeps a kit working on a coast where everything it touches is wet twice a day.