There are a few temples in Kerala where the river enters the temple to perform arattu ceremony. The entering of the river into the sanctum sanctorum is considered highly auspicious. Here is a list of Kerala temples where the river enters to conduct arattu.
- Thanikkudam Bhagavathy Temple
- Ooramana Sastha Temple
- Thiruvalla Thiruvatta Shiva Temple
- Thripulikkal Shiva Temple
- Aluva Shiva Temple
- Ayyappan Kovil Sastha Temple
- Chamravattom Sastha Temple
- Anantheshwara Vinayaka Temple
Arattu is the concluding ceremony during the annual temple festival in Kerala. In most temples, the murti of Bhagavan or Bhagavati is carried atop an elephant to a nearby river or pond and then the priests carry the deity to a into the water body to perform the arattu ceremony.
The deity of the temples in which river enters is never taken out for arattu.