We are thinking of doingJenolan & Kanangra Boyd National Park in one day. We are renting a car in sydney and driving there in the morning. Its a long day i know but is it feasible? Any recommendations. Hoping for lots of wildlife. Family of 4. With two teens :) Would love to hear everyones thoughts and if you have preferences. Going in July. Colder time but maybe good for the hiking part. We are not huge hikers but really want to get the most out of our trip. Thanks so much.