Rayong is famous for its fresh seafood dishes, such as Tom Yum Goong (spicy shrimp soup), Pad Thai (stir-fried noodles), and Som Tam (spicy green papaya salad). Be sure to try the local specialties, like Moo Ping (grilled pork skewers) and Khao Niaow Ma Muang (sticky rice with mango).

Besides Koh Samet Island, the area also offers some of the best attractions in Rayong that you can explore, one of which is the Prasae Mangrove Forest Walk. This destination is a major highlight in the area, featuring a 2,400-hectare mangrove forest along the east coast coastline, complete with a 2.6-kilometer walking path that cuts through the mangroves.

To learn more about Rayong's history, you can visit Phra Chedi Klang Nam Temple, one of the most famous temples in the region. Located in the middle of the Rayong River estuary, the temple has magnificent architecture and is open for visits every day from 6 am to 5 pm.

Another interesting attraction in Rayong is the Ko Kloi Floating Market, also known as the Rayong Floating Market. This is a great place to enjoy local cuisine and shop for souvenirs, clothing, and local handmade goods. The market also offers stunning views over the lake.

Rayong is easily accessible from Bangkok by various modes of transportation. You can take a bus from Bangkok's Eastern Bus Terminal (Ekamai), hire a private taxi or van, or rent a car for a scenic road trip. The journey typically takes around 2-3 hours, depending on traffic conditions.

When visiting temples or religious sites, dress modestly by covering your shoulders and knees. Remove your shoes before entering buildings. Avoid public displays of affection, as they are generally frowned upon. Greet locals with a traditional wai (palms pressed together with a slight bow) as a sign of respect.

It's generally recommended to avoid drinking tap water in Rayong and opt for bottled water instead. Bottled water is readily available and inexpensive throughout the city.