Start this bachelor party experience in Beyoğlu, where the city's nightlife truly shines. Visit the vibrant Istiklal Street, where you can have dinner and drinks at one of the many restaurants, bars, and nightclubs. Afterwards, head to Taksim Square, the heart of Istanbul's entertainment district. Keep the night going at one of the lively nightclubs, such as Sortie or Jazz Café.
For a change of pace, head to the coastal district of Sariyer and enjoy a day of relaxation and adventure. Start by soaking in the thermal baths of Sariyer for some much-needed R&R. Next, head to Kilyos Beach where you can try your hand at parasailing and jet skiing. Finish the day with a seafood dinner at Rumeli Feneri Balıkçısı, overlooking the beautiful Bosphorus.
Take a trip back in time and explore the historic district of Sultanahmet. Start at the awe-inspiring Blue Mosque, one of the city's most famous landmarks. Then head to the Hagia Sophia Museum, with its impressive architecture and stunning mosaics. Next up, visit the Topkapi Palace Museum to get a glimpse into the Ottoman Empire. End the day with a traditional Turkish bath experience at Cagaloglu Hamam, one of the oldest Turkish baths in Istanbul.
Escape the hustle and bustle of the city and spend the day on Princes' Islands. Take a ferry to the largest of the islands, Büyükada and rent bicycles to explore. Stop at Mavi Kumsal Beach for swimming and sunbathing. Cap off the day by watching the sunset with some drinks at Ada Beach Club.
If you have more time, you can add a visit to the Grand Bazaar or a Bosphorus River Cruise. If time is limited, you can skip the Turkish bath experience or the Princes' Islands. Keep an eye out for dress codes when visiting mosques and religious sites. Finally, make sure to try some of Istanbul's famous street food and Turkish coffee.