The River Yealm is a great place to play on or in the water, but you do have to be aware of the dangers this may bring.
During the summer the river is very busy with all sizes of boats moving around. Everyone using the water needs to keep a lookout for other water users. If possible, keep close to a shoreline and ask about local conditions.
Below are some links that will help you enjoy your time in or on the water. There is more information available on the internet so please make sure you look at these articles, heed their advice and enjoy the water safely.