Kerala is one of the places where multiple religions exist in great harmony. This is achieved by one respecting the customs and rituals of other religions. A visit to these shrines is necessary to understand the breadth of cultural influences in the state.

In some Hindu temples non Hindus are not allowed enter the shrines. It is best to ask someone at the temple. Many are happy to let you in as long as the usual rules of the temple are observed. However, photography inside the temple is a strict no-no. Also for male visitors at many places inside a temple, dress code is traditional mundu without a shirt - the no-shirt rule will be enforced even if the mundu rule is not. The best thing to do is to watch what others are doing and follow. You are also expected to take off your footwear outside the temple. Usually there are no locker facilities, cheap footwear is best.

For females any non exposed dress, preferably not shirts and trousers. There are exceptions to these rules, example everybody is welcome at Adhi Shankaracharya's temple. At Shabarimala any male who have done the prerequisite rituals are welcome, but females are not. At a Muslim mosque females have some restrictions. At Christian churches usually males should be at left side of aisle and females on right side. The synagogue at Kochi is not open to non Jews on Saturdays.