Explanation:

Rows with  green background  are Open tours (meaning that the guest can invite others to join their tour but must pay 1000p for each additional person), while rows with  grey background colour  are closed tours (the guest does not want others to join, but keep their tour private).
Days is the number of days (length/duration) of the tour, starting on the Start Date.
No. is the number of guests in the tour.
CAP is the declared capacity of the boat as explained to the guest.
Price is what the boatman gets, plus 1000p extra for each additional guest above what is declared in No.

Below that are some info on weather forecasts. If you have slow internet you can use this page instead.