What is the collective noun for kayakers?

There isn't a widely accepted, specific collective noun for kayakers.

Here are some options you could use:

Informal:

* A crew of kayakers

* A group of kayakers

* A paddling party

* A flotilla of kayaks (focuses on the kayaks themselves)

More creative:

* A ripple of kayakers (evokes the movement on water)

* A glide of kayakers (evokes the smooth movement)

* A splash of kayakers (evokes the sound of paddling)

Ultimately, the best option will depend on the context and the tone you want to convey.