If you want to see beautiful rainforest Coffs Harbour is the place to go. Where the mountains meet the sea, so you can go on a lovely coastal holiday and visit the rainforest whilst here. It is only a 10 minute trip up to the lookout which has a lovely area of rainforest you can go for hikes and take in the spectacular views.
Dorrigo is only an hours drive from Coffs Harbour through beautiful Bellingen and all the old world charm and then up the mountain to Dorrigo. There are fantastic waterfalls, old growth rainforests, and boardwalks right through the centre of the rainforests and over the canopy looking down into the forests.
There are so many national parks all the way up to Armidale if you want to make a big day of it. All varied landscapes, so different to each other, some have large boulders and amazing gorges, with rivers running through.