Xitian Temple is in Yixing Street in the old part of Haikou. This street is difficult to find at the Eastern end, so I suggest you enter from the Western end where it joins Longhua Road. It runs parallel to Deshengsha Road.
Yixing Street is interesting to wander down. There are many very old houses here.
Xitian Temple is used as a social gathering place and in the middle hall you will find people playing 8 ball, watching TV and playing cards.