I assume you mean Laguna 69! it is only a day trek but quite tough if you have no experience on trekking and especially if you are not fully acclimatised the Laguna is at 4600m and the last stretch is quite steep. That said, most people seemed to manage it without turning back. We did it a couple of years ago details and photos on our blog @ https://accidentalnomads.com/category/peru/ laguna 69 is about halfway down.
Sorry, we saw a lot of laguna but I don’t know if Laguna Paron was one of them!
Hello! i didn't visit Laguna 69, but I did visit Laguna Paron on my last day. If you're travelling from Huaraz, it takes a long time to get there (a little over three hours) but the lake on a clear day is absolutely stunning!!!! One of the prettiest lakes I've seen (and I've seen lots of lakes). It's really not much of a hike at all to head up to the mirador... only 30 minutes and you get fabulous views of the mountains ringing the lake. It is the largest lake in the Cordillera Blanca too!
The one thing I didn't like was that it takes over three hours to get there from Huaraz (and three hours to get back) and we only spent 2 hours there (which was plenty if you're just going to the mirador). This is easily fixed if you don't mind this or if you stay somewhere closer like in Yungay or Caraz. You can also walk around the left side of the lake to get a closer view of the mountains.
I highly recommend it.