Eh , Didn't say you can't use a chair !!!
Stalking is roving looking , moving keeping your wits about you constantly .
Unfortunately stalking is not what Dicky seems to think it is .
You cannot redefine the meaning of stalking !! Just because you believe what your doing is stalking doesn't mean you are see snowmansteves reply above which is spot on!
Use a brolly if you want BUT how can you move quickly if you've put a brolly in the ground , how can you watch the water while putting or taking down the brolly .
Stalking and moving swims are two totally different things .