See the practical trade-offs before choosing by price alone.
A big boat gives up speed and hands you space instead. That is a good trade when you care about the price, want room to stretch out, and would rather not be thrown around on the crossing.
The cheapest way to see the park. Watch one thing: kayaking is often an add-on here, so compare what you would actually pay rather than the headline figure.
The boat is a base camp. You paddle several times through the day with a guide, instead of getting one token session. Built for people who came to kayak.
The Red Baron is a different animal. Slower, more comfortable, food brought to you, proper sails. Skip it if kayaking is the point of your trip.
Usually it feels steadier than a speedboat, and that helps. No boat cancels out the sea, though, and some days are simply rough.
It varies a lot. The specialist kayaking boat runs a small group; the budget boat carries many more. The maximum-group column in the table tells you which is which.
Not always. Add the optional kayak and the park fee if the tour collects it separately, and the gap to the next boat up can almost vanish.