The changeover
A charter boat earns on the water and costs money at the dock, so a charter company turns its fleet around in a single day. Guests check out on Saturday morning, the base cleans, checks and refuels every boat, and the next guests check in the same afternoon. Run that way, a boat sails week after week with no dead days between charters.
That is why nearly every company's price list is written in Saturday-to-Saturday weeks, why its booking rules say "check-in Saturday" for most of the season, and why a search for a Wednesday start in July comes back nearly empty on a site that respects those rules — which this one does. We never move your dates to make a boat appear; a boat whose company refuses your dates is simply left out.
The Wednesday fleets
Some companies deliberately run a second rhythm. A fleet that changes over on Wednesday sells to people who cannot take a Saturday flight, and takes the pressure off the marina on the busiest morning of the week. On this site a Wednesday week is priced as a Wednesday week, by its own company, and shows up when you ask for one.
When your dates really are fixed
Outside high season many companies allow any check-in day, and some allow it all year for a longer charter. The calendar on this site picks whole weeks by default and lets you switch to exact days with one click; it then shows only boats whose company has said yes to exactly that stay.
Three ways to get a boat on an awkward date. Search the shoulder months: May, June, September and October are where the any-day rules live. Take the week the boat offers: a Saturday week with a flight the day before is often cheaper than a mid-week start, once the price difference is counted. Ask: a company that will not list an odd date may still agree to it for a longer charter — say in the enquiry that your dates are fixed, and we ask on your behalf.
What it means for the price
Weekly prices are published per Saturday week, so a stay that straddles two price bands is priced by the company's rule for it — usually day by day across the two. The yacht page shows the stay you asked for at the price the company gives for exactly that stay, which is the only number worth comparing.
Yachtco writes its own journal. Facts about the booking rules come from the reservation system the charter companies use; nothing here is advertising for a particular company.
