In reply to Sam Beaton:
I’ve done yoga in the past but generally can’t be bothered with classes nowadays. I have significantly improved my lower body flexibility in the last year though and it’s had a dramatic effect on my climbing. I used to be really inflexible in my hips and hamstrings.
I just do 4 stretches 3 or 4 times a week. They are (just Google them):
wide child’s pose
reclined pigeon left side
reclined pigeon right side
forward fold
The critical thing is that you must hold these stretches for at least 3 minutes each. Don’t push the stretches, control your breathing and relax into them. 3-5mins is a good rule of thumb. People generally don’t understand how long you need to hold a stretch for it to actually make a difference to your flexibility. Bouncing on your hamstring for 15secs does absolutely f-all!
Search YOGABODY on YouTube, I learned a lot from him (Lucas). He demystifies this stuff.
A yoga class could also be great though!