Oh, Nha Trang is such a beautiful coastal city in Vietnam, perfect for a relaxing getaway! Here's an ideal itinerary for your 3 days in Nha Trang:

Day 1:

• Morning: Start your day with a visit to the Po Nagar Cham Towers, a historical site with stunning architecture and cultural significance.
• Lunch: Enjoy some delicious local seafood at one of the many restaurants along the beachfront.
• Afternoon: Head to Nha Trang Beach for some sunbathing and swimming. You can also try out some water sports like snorkeling or diving.
• Evening: Explore the bustling Nha Trang Night Market for some shopping and street food delights.

Day 2:

• Morning: Take a boat trip to the nearby islands of Hon Mun and Hon Tam for some snorkeling and relaxation on pristine beaches.
• Lunch: Have a seafood feast on one of the islands or head back to the mainland for a local Vietnamese meal.
• Afternoon: Visit the Long Son Pagoda and climb up to the giant white Buddha statue for panoramic views of the city.
• Evening: Relax at Thap Ba Hot Springs and indulge in a rejuvenating mud bath experience.

Day 3:

• Morning: Explore the beautiful countryside of Nha Trang with a visit to the Yang Bay Waterfall and the Ba Ho Waterfall for some hiking and nature appreciation.
• Lunch: Enjoy a picnic lunch by the waterfalls or head back to the city for some more local cuisine.
• Afternoon: Visit the Nha Trang Institute of Oceanography to learn about marine life conservation and see various sea creatures up close.
• Evening: End your trip with a sunset cocktail at one of the beachfront bars, soaking in the stunning views of the ocean.

I hope this itinerary gives you a good mix of relaxation, culture, and adventure during your 3 days in Nha Trang! Enjoy your trip!