There are several types of swimming snorkels designed for different purposes and skill levels. The most common type is the front-mounted snorkel, which is perfect for both beginners and professionals. It sits in the middle of your face, providing perfect balance and comfort while swimming. The center snorkel is also popular among competitive swimmers. It features a hydrodynamic shape that minimizes resistance and helps swimmers glide smoothly through the water. These snorkels often come with adjustable straps and a one-way purge valve to remove water easily.