Great question 🙌—because Buenos Aires is big, vibrant, and packed with culture, history, and nightlife. The ideal number of days really depends on whether you’re just stopping over before Patagonia/Iguazú, or if you want a deep dive into porteño (local) life.
🏙️ Quick Overview #
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3 Days (Minimum / Highlights) - 
Day 1: Explore Microcentro (Plaza de Mayo, Casa Rosada, Teatro ColĂłn), stroll Florida Street, and Puerto Madero for dinner. 
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Day 2: San Telmo & La Boca (Caminito, tango vibes, antique shops), then evening tango show. 
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Day 3: Recoleta & Palermo (Recoleta Cemetery, museums, parks, cafés, nightlife in Palermo Soho). 
 
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4–5 Days (Ideal for First-Timers) - 
All of the above + more time for: - 
A day trip to Tigre Delta (boat ride & local market). 
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A deeper dive into Palermo’s trendy shops, art, and food scene. 
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Extra museum time (MALBA, Museo Nacional de Bellas Artes). 
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A Sunday in San Telmo Market or a football match (Boca Juniors or River Plate). 
 
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7 Days (Slow Travel / Culture Immersion) - 
Everything above, but with time to: - 
Take a tango class or spend late nights in milongas. 
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Enjoy the café culture and bookshops (El Ateneo Grand Splendid is a must). 
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Visit neighborhoods less frequented by tourists (Villa Crespo, Almagro). 
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Take a day trip to Colonia del Sacramento, Uruguay (1-hour ferry ride). 
 
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âś… Recommendation #
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3 days → enough for highlights if you’re on a tight schedule. 
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4–5 days → perfect balance for first-time visitors. 
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7 days → for slow travelers who want to live like a porteño.