McCardles Bush, down Coach Drive and into the bush a bit just behind the McCardles bench. I think this would make an excellent spot, have used it myself for MF fun once. Better in the summer of course. A turn on because the track is widely used by bikers and runners (and actual dogs - watch out for snuffling muzzles). Bring a thick blanket cause it's a muddy spot due to tidal nature of reserve. Looking forward to warmer weather!