I have spent far too much time in the pool training for the 2025 New Zealand Masters Swimming National Competition that took place last weekend in Auckland. I varied my training using Swim Training Patterns. They kept from going insane by swimming up and down the lanes.
All that training worked out rather well. I managed to win the gold medal in my age group for both abled and para swimmers. It is likely the first time a para swimmer has also won the able-bodied swimming competition, but I might be wrong on this. The results and times are available.