Diani Beach is a popular tourist destination located on the South Coast of Kenya, in East Africa. It is known for its beautiful white sandy beaches, clear blue waters, and palm trees, making it a popular destination for tourists from around the world. Some of the popular activities that tourists can engage in while visiting Diani Beach include:

1. Beach activities: Diani Beach is known for its beautiful beaches, and visitors can enjoy a variety of beach activities such as swimming, sunbathing, beach volleyball, and beach soccer.
2. Water sports: Visitors can also enjoy a variety of water sports such as snorkelling, scuba diving, jet skiing, and windsurfing.
3. Wildlife tours: Diani Beach is close to several wildlife reserves such as Shimba Hills National Reserve and Mwaluganje Elephant Sanctuary. Visitors can take wildlife tours to see animals such as elephants, giraffes, zebras, and antelopes.
4. Cultural tours: Visitors can also take cultural tours to learn about the local Swahili culture and visit historical sites such as the Mnarani ruins.
5. Nightlife: Diani Beach has a vibrant nightlife scene with several bars, restaurants, and nightclubs.
6. Golf: Diani Beach has an 18-hole golf course, the Leisure Lodge Golf Course, which is popular among golf enthusiasts.

Overall, Diani Beach offers a wide range of activities and attractions that cater to different interests, making it a popular tourist destination.