Port to Port

I am doing a new event end of May called Port to Port, it's a 4 day ride starting at Port Stephens and ending at Nobbys beach Newcastle. Unfortunately I can only do the last 2 days, Sat - Briar Ridge Winery to Richmond Vale (60km), Sun - Cams Warf to Nobby's Beach (45km). I have not done any rides in these areas, can anyone shed some light on what I might expect?