If you want to earn your Swimming Badge for the Tadpoles, you’ll need to brave a radioactive lake with some resident Mirelurks. Here’s how to best this challenge.How to start the Spruce Knob Lake Swimming Challenge in Fallout 76To get your Swimming Badge in Fallout 76, you first need to start the challenge. This swimming challenge is exclusive to Pioneer Scouts, a pre-war club of survivalists. So head over to their camp in Appalachia if you aren’t a part of their group already.This swimming test is located at Spruce Knob Lake, which can be found here:Screenshot: PC InvasionThis area has a Mirelurk infestation thanks to the presence of a Mirelurk Queen, so be very careful when entering the region. Before you start the challenge, you’ll need to have a swimsuit equipped. A few swimsuits can be found around the hut outside the lake, in the Footlocker and in a Portaloo, so don’t worry if you don’t already have one.Screenshot: P…