You could wear a wet suit, taped with some gaffer tape, thick balaclava, etc. It might not stop leaches but will reduce the chance of ticks and most other bites

You could wear a wet suit, taped with some gaffer tape, thick balaclava, etc. It might not stop leaches but will reduce the chance of ticks and most other bites. But you would also sweat a lot and generally be quite uncomfortable. Tradeoffs... Though I am nearly there when I go for walks in mosquito country. Big hat, with netting all around, socks half way up my legs, trousers stuck well inside them... I do really hate ticks. Ruins summers for me.