Well.... first one is on the 6th of April and about 30 mins from Swinley. So assuming that Swinley has dried out a bit by April
there's the option to do the 2hr TrailTrax.... bit of lunch at the start/finish pub and then over to Swinley for a bit of blue trail fun?
Second one is 18th of May and a bit further west but right on the edge of the South Downs so options there?
For me it's pretty weather dependent.... lost in the wood on a nice day, bit out fun
Lost in the wood in the rain, not so much fun