: I'd say, start really early in the morning, get it soaking wet, and
: spray it down every 10 minutes or whenever it starts to feel
: like it's drying out (without filling the 'yak with water).
: Maybe a garden mister would be a help to keep the area cooler,
: and provide a fine mist to wet the skin as needed. Or a clean
: pressure sprayer (like the kind used for herb/pest-icides.)

: StephenHJ

I just kept a few bottles of water around and splashed it all before i started, and every once in while (maybe 30 minutes).
and that was enough to get my skin drum tight while sowing on a fairly warm sunny day.

might have been tighter on a cold rainy one, but i'm not sure i'd be able to tell... :P