The open water swimming season usually starts at the end of April and lasts until the end of September.
There are several open water swimming venues within easy reach of Andover. They are
Tri2O Swim Centre
Situated just south of Reading, the Tri2O swim centre is probably the most popular with club members. It is a 750m lap and the water is always clean and clear. Keep you eye on the Club Facebook group as there is usually someone heading to the lake on Thursday evening or early on Saturday or Sunday morning during the summer.
You can read more by clicking here
Eastleigh Lakeside is just off the M27 on the outskirts of Eastleigh. It is a pleasant venue but is less popular as it only has a 350m lap and so can get crowded when it is busy. You can read more by clicking here
Here is an infographic showing other open water swimming locations across the country: