Getting into swimrun shape requires a swimrun training plan. You might be a strong open water swimmer or trail runner but there is no substitute for putting into practice a swimrun specific training plan. For first-time swimrunners and those returning to the sport, start with the beginners training plan. For those looking to progress, see the advanced training plan.
Start here for an 8 week beginner training plan. This will get you swimrun ready in no time at all. Prepared by Swimrun UK Champion, Hugo Mota.
For a more advanced training plan, this will get you into competitive shape. Prepared by Richard Stannard, an open water swimming coach who is in one of the best mixed teams in the world.