Elgin Adventure Centre provides adventure tours in the Elgin/Grabouw Valley, one hour from Cape Town. The Elgin Valley Winelands Wander is a half-day guided cycling tour of 21 km through Oak Valley and Paul Cluver, with tastings at two estates. It starts and ends at Oak Valley Wine Estate - The Container from 10h00 to 13h00, for ages 16 and up, at R780.

Fully guided tour, 1 guide per 10 guests
Mountain bike and helmet rental
Snack pack with bottled water, chocolate and peanuts or raisins
Wine tastings at two estates
Day permit for trail access
Lunch, gratuities and extra wine purchases not included

Taken from their own site, https://www.elginadventurecentre.co.za/tours/elgin-valley-winelands-wander. A route, a price, or a pickup time can change. Confirm it with them before you pay.