What is the collective noun for summer tourists?

There isn't a single, widely accepted collective noun for summer tourists. However, here are some options, depending on the context:

Informal:

* A swarm of tourists

* A horde of tourists

* A throng of tourists

* A gaggle of tourists

* A mob of tourists (slightly negative connotation)

More formal:

* An influx of tourists

* A tide of tourists

* A surge of tourists

* A wave of tourists

You could also use a more specific term depending on the type of tourist, such as:

* A pack of backpackers

* A group of sightseers

* A party of vacationers

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