Watersports — 15 min – 1 hour sessions
Wet Spot Watersports runs jetski rides, towable tube rides, and other on-water activities directly off Agia Paraskevi (Kyani Akti) beach near Makri, about 14km west of the city — the same beach that's consistently rated the best organized swimming spot in the area.
Sessions run short — typically 15 minutes to an hour depending on the activity — so it works well as an add-on to a beach day rather than something you need to plan a whole afternoon around.
It's a seasonal, weather-dependent operation like most beach watersports outfits, so it's worth contacting them directly in shoulder season to confirm they're running that day.
A direct link to the operator's own site — not an affiliate link, no commission earned.