I have a number of questions regarding Lag Baomer.
1) Can one join a Lag Baomer party offered by our neighbors on their backyard, done with an open fire and music with guitars that continues on the night after Lag Baomer. It is a party from our neighbors that involves Kiruv of all the not so religious nearby friends?
A. Kovetz Halochos (p. 73) mentions that regarding a wedding that continues into the night after Lag Baomer, since they are engaged in the great Mitzva of honoring and giving happiness to the Chatan and Kalah, it is permitted.
In our case if it seriously involves real Kiruv or bringing close to our Torah and Mitzvos people that are not yet there, it should be permitted.
Rabbi A. Bartfeld as revised by, Horav Yaakov Hirschman, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a