I was a bit wary to go on the Red Lantern Tour after reading the reviews on TripAdvisor. A lot of people mentioned that they didn't 'feel safe' once they got to Geylang. However, I totally disagree. I LOVED this walking tour... definitely one of the highlights of my trip to Singapore.
Our guide was wonderful and knowledgeable about the area and pointed out all kinds of things I never would have noticed in China Town. After walking around China Town, we took a bus to Geylang, with our guide pointing out details and telling us information along the way. Once in Geylang (which was nowhere near China Town), we had turtle soup and crocodile at a local restaurant. I would NEVER try something like this, but my husband loved it... and I think he was a little proud that he was able to eat turtle soup and crocodile during the trip.
True, Geylang was sketchy... we did see some 'ladies of the night' lining up in the alley and tried our hardest not to stare. And there was some gambling going on. But I wouldn't say I ever felt unsafe. And it was interesting to see all the houses with red lanterns in the front... we couldn't see what was going on inside.
I would definitely recommend this tour... and this walks company in general. I only wish we would have had time to do some of the other walks too. And I wish we would have had time to do some quick shopping or get a quick bite during the tour since I was starving by the time it was over!! Thankfully, the Maxwell Food Center was close by. Unfortunately, by the time we got there, most of the stalls had closed, and there was nothing I really wanted to eat.