That was enough to make me stay go back there for a few days, to find out more.
The city itself is only 200 years old, and so these temples relatively recent. But huge caves stretching deep into limestone hills was evidently a temptation to the temple-builders. There are four main temples, but countless more lurking in the hillsides.
Some are truly vast:
If you look closely there is a tiny woman towards the bottom of this picture - and no, she's not an Umpa Lumpa, she's a full-sized woman in an enormous cave.
And here is a huge Buddha that does not justice do the size of the cave - I failed in my efforts to get a clear picture of gods in the semi-darkness that show how how even the biggest images are dwarfed in these caverns.
In contrast, this Chinese gods, perched on a rock, are only about 40cm tall. They look to me like they are having a party while all the serious religious stuff is going on elsewhere.
In contrast, this temple is built into a cave with a front wall and open entrance and windows. Steps lead up to smaller temples - complete with monkeys - and views across and industrialised quarter of Ipoh. I decided not to take a picture of that.
This is what it looks like close to:
No, I'm not going to tell you what I wished for. But my little yellow tag is still fluttering away, on its tree. Well - I'm sure you'd have written one too, if you'd been there.