I get the impression that Sapa is always muddy - it certainly was in March, but only on the "so-called" trails. It was great fun, I'd do it again, but next time I'll prepare with decent boots!!! It's not the mud that gets one, it's the damn rocks on those "so-called" trails. You'll also encounter buffalo dung there. Good sugarcane though, and really nice people in the area. One of the best times is after dark - the whole town is candlelit.
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