My husband and I will be visiting The Big Island next week. We'd really like to see the Volcanoes National Park -- mostly by car, as I have an injured knee (probably torn cartilage) and can't walk very far. The further I walk, the more it hurts in the evening. Can you please tell me wonderful things that we can see from the car or involving only a short walk (e.g. 1/4 of a mile) from the parking lot. I've waited for this trip for 39 years and don't want to not visit the park. Thanks so much!