My husband & I did a 4 hour walking tour with Oliver of Buenos Tours in January as we only had the day and evening in Buenos Aires before joining our cruise the following day. Isabel, who had dealt with our emails at Buenos Tours had advised us that as we didn't land at EZE until 8.30am it was unlikely that we would get to our hotel until 11.00am (how right she was) the 4 hour walk would be our best option. Oliver was an excellent guide, enthusiastic, knowledgeable, informative and helpful. We learned a lot about his adopted city's culture and history in a short time. The pace was perfect for 2 very jet lagged people and we had a perfect coffee stop at Cafe Tortoni. We were really pleased we had booked the tour and Oliver was outstanding. Isabel had organised everything perfectly including our Tango/Dinner show at Piazzolla Tango that evening. We were very impressed and pleased with the service offered by Buenos Tours.