Hi Kym
We did something similar on a linear coastal park in Dunsborough with a mix of fitness and obstacle equipment. The nodes are located along a popular dual use path and intervals of 100m+. To mitigate the issues we installed rubber soft fall with synthetic grass overlay to comply with Australian Standards. Most playground providers now have a good range of this equipment and would avoid cheaper options as they have ongoing maintenance issues.
The fitness equipment has signage noting that its for persons over 14 years of age. There is also a sign at the start explaining the purpose. The area is now very popular with cross fit training providers.
The main issues we have had has been the heat stored by the rubber/grass combination, it dissipates quickly once stood on and generally most are wearing shoes. We have covered one with a shade shelter and the others were located under tree canopies which also helps with the heat of summer.
Hope this helps.
Cheers
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Karl Clively
Parks Project Officer
City of Busselton
BUSSELTON WAau