How many people were at Hong Lim Spring?

I was there for nearly two hours. I walked around the whole park taking photos along the way. My estimate is that there were at least 5 to 6,000 people there at its peak. But I don’t think anyone will trust me because I am not a reputable newspaper like Reuter, AFP, AP, CNN or the ST.

Who is the most authoritative or suitable party to give a good estimate of the number of people on the ground?