Out of all the things you do, this is an absolute must! This hike, which is not a difficult hike, is incredible and beautiful and scenic and fun and everything you would ever hope for from NZ. If you skip this, you've skipped the major reason for visiting NZ. Nicole is wonderful and knowledgeable and patient and fun. I encourage everyone to book this tour. It will be one of the biggest highlights of your trip! You can book directly on their website too. I can't say enough about them and the day they plan -- and they take care of everything!! Nothing for you to worry about except a great day. PS - we did it in running shoes and it worked great. No hiking boots or special shoes needed. Thanks for a great day Crater Rim Walks!!!