In the morning, visit the Dwarkadhish Temple known for its beautiful architecture and intricate carvings. This temple is dedicated to Lord Krishna and is one of the most visited temples in Mathura. Afternoon can be spent exploring the local markets near the temple to buy souvenirs and enjoy some street food. In the evening, visit the Yamuna River Ghats located nearby and take a relaxing boat ride while enjoying the sunset.
Start your morning by visiting the Mathura Museum that houses a vast collection of ancient sculptures, artifacts, and paintings. After that, make your way to the Krishna Janmabhoomi Temple, which is believed to be the birthplace of Lord Krishna. In the afternoon, explore the nearby areas, visit some local shops and enjoy some delicious local food. In the evening, attend the Sound and Light Show at the temple that tells the story of Lord Krishna's birth and life.
If you have some extra time, do visit Vrindavan, which is only 14 km from Mathura and is known for its beautiful temples. You can also take a day trip to Agra to see the magnificent Taj Mahal. For maximizing your fun, try participating in the local festivals that happen during September.