There are many places in Sanya City where you can eat Wenchang Chicken. Here are some recommended places:

1. Sanya Bay Coconut Dream Corridor: Sanya Bay Coconut Dream Corridor is a famous Seafood Street, there are many restaurants serving Wenchang chicken. You can choose to dine in the restaurant, or buy fresh Wenchang chicken and cook it yourself.

2. The First Market: The First Market is one of the largest seafood markets in Sanya City. There are many stalls serving Wenchang chicken. You can buy fresh Wenchang chicken here, or enjoy Wenchang chicken delicacies at the restaurants in the market.

3. Yalong Bay Commercial Plaza: Yalong Bay Commercial Plaza is a large shopping and leisure center where there are many restaurants serving Wenchang Chicken. You can enjoy delicious food here, or you can buy fresh Wenchang chicken and cook it yourself at home.

4. Sanya Phoenix Airport: There are many restaurants in Sanya Phoenix Airport that serve Wenchang Chicken. You can taste Wenchang Chicken while waiting for your flight.

In general, there are many places in Sanya where you can eat Wenchang Chicken. You can choose a place that suits you according to your preferences.