In need of kayak-specific conditioning for a 100km expedition in Greenland Hi everyone! ​I’m embarking on an expedition this summer: a 100km kayaking trip through Greenland. I’ll be joining a guided group, but I want to make sure I’m physically prepared so I can actually enjoy the scenery instead of just struggling to keep up. ​The challenge: I’m an occasional paddler, but I’m definitely not used to back-to-back long days on the water. To make things trickier, I don’t own a personal kayak, so getting "on-water" hours before the trip will be limited to occasional rentals. ​What I’m looking for: ​Off-water routines: What are the best gym or home exercises to build the specific endurance needed for multi-day paddling? (Focusing on core, back, and shoulders). ​Injury prevention: Any specific stretches or mobility work to avoid tendonitis or lower back pain during long sessions? ​Stamina: Since I can't paddle every day, should I focus on rowing machines (ergs), swimming, or something else?…