Security is an issue we bumped into a local when were out of a gentle spin and rode up around Rhodes memorial area and he was saying just riding with a couple of others made him feel safer about what is a fairly popular area.
If you’re there for a few weeks Cape Velo might be worth a shout. Jamie is a top bloke, used him three or fours years in a row, and Iirc STW reviewed them as well. Local riders have always been very friendly and, apart from the security issues it’s great for riding (codicil no way would I ever ride on the road other than to go from trail to trail there)