Last trip we had 8 adults and were a little worried about not having enough Dingy space.

We got a 2-person kayak as a supplement to our dingy, which worked fine.

Remember that a small dingy with a 10hp engine will typically plane with only one person in it, so the return trip to get more people is usually pretty quick!

Also - there are those that are slower to get ready to go ashore than others, so we found the group sort of naturally divided itself into two.