The Surface Interval

Tips, tricks, and tales from the Pythagoras team.

Close up of professional diving mask
Equipment Guide

How to Choose Your First Mask

October 24, 2023

Your mask is your window to the underwater world. Finding the perfect fit is more than just style—it's about comfort, safety, and seal. Dive into our comprehensive guide on silicone quality, field of vision, and the 'sniff test'.

Continue reading
Diver preparing to enter water at a local site
Locations

Top 5 Dive Sites Near London

You don't need a plane ticket to find world-class diving. Discover the hidden gems within a two-hour drive of the City.

Read More
Deep underwater scene with divers
Safety & Science

Understanding Nitrogen Narcosis

The 'Rapture of the Deep' is a fascinating but serious physiological phenomenon. Learn the symptoms and how to manage the effects.

Read More