On Tishah B’Av a person should only concentrate on mourning and the Hurban for that is the essence of the day.

1. Any activity that brings enjoyment is prohibited

2. A pleasure walk or trip is not permitted.

3. a. One should be strict and not smoke on Tishah B’Av especially in synagogue during Eichah and Kinot.

b. If one is used to smoking and it is very difficult for him to refrain one should smoke in private.