I was volunteering in Cajamarca for two weeks with another girl from the states, and it was suggested by our volunteer coordinator to check out Laguna Seca rather than Banos del Inca- which although cheap, can get REALLY crowded since it's a very popular tourist spot in Cajamarca/Banos. Compared to spa prices in the states, this is a STEAL! For $57 USD we each had three hours worth of services including: sauna, outdoor thermal pools, herbal jacuzzi with floating flowers, 45min total body massage including foot reflexology and mini facial. We got nice thick robes, towels, slippers, a private changing room with a nice hot shower (honestly- just to have such a nice hot shower after two weeks of cold showers volunteering was so exciting), bottled water, and some kind of fresh-squeezed lemonade juice that was delicious and refreshing. Again- all for less than $60.
Banos in town is very iconic and affordable, but if you don't mind spending the extra money- go to this beautiful property and treat yourself.
Tip: We weren't staying in the rooms so we had to book our spa treatments separately over the phone the day before. Knowing to speak Spanish somewhat well will help you booking over the phone. I'd recommend booking at least the day before to guarantee a time slot, and not just showing up.
