Rimu and Woodstock are just inland from Hokitika and offer scenic views over the Hokitika River and to the mountains.
The road through Rimu and Woodstock offers amazing views of the Hokitika River.
Here are some ideas of how to enjoy them:

Stop at Rimu Point Lookout to overlook the river and the surrounding mountains. A short walk here has information panels about the history of the area. 

Do a popular half day scenic drive that includes Woodstock, the Rimu Point Lookout and Lake Mahinapua.

Woodstock is well-known for being the location of the annual Woodstock Rally, a must- do on the NZ motorcycle rally circuit and key Hokitika event.