Why was Douglas determined to get over his fear of water?

Douglas regretted being deprived of enjoying water activities like canoeing, boating, swimming, fishing, etc. The wish to enjoy them and the craving to regain his lost confidence, while being in water, made him try every possible way to get rid of his fear. He was finally able to overcome this mental handicap by getting himself a swimming instructor and further ensuring that no residual fear was left.