Clyde windsurf & SUP

SUP or windsurf at
Castle Semple Loch

We coach on our great local loch. It is called Castle Semple Loch and it’s at Lochwinnoch. 

It is big enough to have a variety of conditions but small enough to be super safe

What we do


If you are 18 or over, and no matter what fitness level, we can teach you to have fun and stay safe on a Stand Up Paddleboard (SUP)


Our Loch is a gorgeous place to spend an evening. We run coached and social club nights.We also travel to amazing local spots.


If you want to take it to the next level, we run Touring & Race SUP training.

It's also a great way to get fit

Learn to Windsurf courses

We run courses for both adults and children
(10 yrs upwards)

Junior Windsurfing Club

We run a junior club night throughout the season with coaching included

Adult windsurfing club

We run a adult club night throughout the season for competent windsurfers

Our location

We are here

Castle Semple Visitor Centre and Country Park,
Lochlip Road,
PA12 4EA

See the:
Visitor Centre directions page

We are on the road from glasgow to largs

Our new compound is the very last one next to THE loch

Follow the red line from the Car Park to us 🙂

Sat 19th June:  10am to Noon

Gloves, SAS refuse bags and Litter pickers provided

surfers against sewage - million mile clean.

Sat 19th June:  10am to Noon

A SUP board is the perfect place to collect plastic from the water that you are enjoying.

We are teaming up with Surfers against Sewage, to help with the Million Mile Clean campaign.

Take part in the Million Mile Clean, the biggest community clean up event of the year. Together, we can protect our coastlines and waterways.

Join us for a litter pick around Castle Semple Loch. Bring litter pickers if you have them, trugs or similar for your board and be prepared to get mucky!
Shoes with a hard sole recommend. Bring water (no single use plastics, please), and snacks.

We shall navigate our way around the Loch, landing our boards at strategic places looking for litter. Collected litter will be left on shore and picked up by powerboat later. 

This is a free event. If you wish to donate to Surfers Against Sewage or find out more about the work they do. Click on the link below.

Suitable for 18 +


where do i buy stuff

Favourite Shops


Great local selection of boards and kit that you can demo. Based near Falkirk.
Emma who runs it could not be more helpful.


Glasgow based company that makes excellent dry-bags, drysuits, wetsuits and more.
Tough and extremely good value kit.


Originally we knew them as a Windsurf company but they now also hire and sell paddle boards. They do a very useful repair service for boards & sails.

Covid Restrictions

Read the RYA Sailing guidance for what you can do under the current conditions.
If you want to read more details about our operating procedures then please reference our Safety Management System site