Meet your guide in a central location and go through a short safety demonstration before you receive your bike. Strap on your helmet, jump on your comfortable beach cruiser and hit the road for your leisurely ride through some of Buenos Aires' most interesting neighborhoods.
Start with a cycle around San Telmo, known for its colonial architecture and Dorrego Square, the historic heart of the neighborhood. While there, scope out some spontaneous tango performances while observing typical neighborhood life in San Telmo's bars, restaurants and cafes.
Pedal over to La Boca, a colorful neighborhood with a European atmosphere that has persevered since Italian immigrants first settled here decades ago. Stop to see local artists selling their work on the Caminito, the pedestrian-only street lined with colorful buildings.
Continue to Puerto Madero, the city's newest neighborhood whose old docks have been converted into trendy restaurants, lofts and offices. Then, make for Buenos Aires Ecological Reserve, a 865-acre (350-hectare) natural space along the Rio de la Plata. Cruise through this serene oasis in one of the city's most bustling downtown areas, and follow your guide's lead in looking for swans and egrets.
Finally, ride over to Plaza de Mayo, the political center of Buenos Aires, and snap some photos of Casa Rosada, the Argentine president's pink-walled office.
After four hours of touring on your bike, accompanied by thoughtful commentary from your guide, you'll end up in Plaza San Martin.