My mother and I very much enjoyed the train ride to Middlemarch. The gorge is beautiful and the history of the railway and Otago is best learned on a tour such as this. It is a bit pricey but worth it if it's the only way you can really get out to see some less-traveled natural areas (such as with an elderly parent or young children). The morning trip to Middlemarch is nice because you can have lunch there. The train made two stops, one on the way there and one on the return trip, for passengers to disembark and take photos.