The Leopard Trail within the resort is well worth the effort. I don't know of any online maps but a map of all the walks is available at reception. The main tourist waterfalls are back towards Graskop and Sabie but another very worthwhile walk/scramble is to the Tufa fall on the Abel Erasmus pass, starting at the curio seller stalls below the main rock walls of Manoutsa. Then you could continue to the Waterfall Trail near Swadini, and perhaps do the Hippo Trail around the edge of the Blyde Dam, ending where the Blyde River flows into the dam. A path used to continue from that point back up to the Blydepoort Resort but has been closed for years now, and is very overgrown. Depending on how much time you have in the area, definitely consider Mariepskop too.
August may be chilly in the early morning but very pleasant for the rest of the day. SA cuisine? Lots of touristy restaurants but some of the locals swear by the Wildebeest Lapa near Kampersrus. I have not tried it myself yet.
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