Just that really - I so love my aqua aerobics when on holiday, and know that cold water plunges are good for me... however, our garden isn't that big.
I'm keen to try something for the next year or two and see how it goes... spec I think is this from doing my aqua in the pool here. A minimum of 125-140 deep and 2.20m wide, and not more than 2m deep and 3m wide ie sufficient for me to do my aqua in... for 30 mins in summer, 10 mins in winter when cold water. What are the options? Flat bottom.
Keen to get for a few hundred, but realise it might be more like £1,000. Worth it to me as an investment in my health which has been pretty ropey recently.