We took this southern BsAs bike tour a few days ago, back when we had an apartment. Ah, the weather was glorious and our guide was funny. He hops curbs very well, and I can’t seem to do it at all. We learned that riding through Puerto Madero’s ecological reserve was preferable to walking because it’s big. Get a load of the gorgeous pampas. Also, urban biking in Buenos Aires means navigating through aggressive traffic and bumpy cobblestone streets. Wholeheartedly recommended.