It's a beautiful location and a fun vibe at the Manly Dam Trail Run.

There are four distances which makes this a fun event for every runner, right on the edge of the Northern Beaches.
It's a scenic start and finish area on the shores of the Manly Dam. If the weather's hot, runners jump into the dam for a dip.

The official website has tickets for sale now. There's plenty of parking in nearby streets if you get to the venue early enough. 

https://endurancecui.active.com/new/events/73122731/select-race?_p=2493386392429151