For a holiday in March 2021, my draft itinerary is
Day 1: Drive with bike from home to Paeroa: 6 hours.
Day 2: Bike Paeroa to Waihi: 6-7 hours (inc. sightseeing), 24 km. Stay 2 nights.
Day 3: See the sights in Waihi.
Day 4: Bike back to Paeroa.
Day 5: Drive home.