Write down the included items
Check the published price for the exact date, session level and duration you want. List equipment, coaching, storage and any separate charges. Do not assume a photograph of an instructor or a wetsuit means those items are included in the basic booking.
Add the costs outside the water
Include transport, accommodation if needed, meals and the time required to change and check in. Compare options you can realistically attend. A cheaper session far from your base may cost more overall than a better-located option.
Read the change and cancellation rules
Find out what happens if you are late, choose an unsuitable level or face an operational interruption. Check whether different parts of a combined package have different conditions. Keep a copy of the terms that apply to the actual booking.
Measure value by the learning goal
A clear objective makes comparison more useful. If you want coaching, compare coaching arrangements. If you want repeatable practice, understand the session format and expected group organisation. Avoid turning an uncertain number of waves into an exact cost-per-wave promise.