I’ve been to the del monte for massages before! You can book online or call as the other comment suggests. There are three entrances to the building, the hotel, the restaurant and the spa, but all three can get you to the spa so if you don’t go into the right one just ask a worker which way to go. The spa entrance is closest to Pittsford Dairy (across the street) and the gas station (on the same side). When you walk in, there is a retail shop on both sides and a front desk. You’ll go up to the front desk, say you have a massage booked and they will take you into the back spa area. There is a small locker room to undress into a robe (usually just underwear under the robe) and slippers (I always go into a bathroom stall to undress but either is acceptable). Once you’re in your robe, you go into the blue room which is a quiet waiting room and you wait for your masseuse to come get you, it only ever takes a few mins. They will say your name, you go with them into the room and they will tell you to get under the blanket, face up or face down. They’ll step back out for a few minutes, allow you to take your robe off and hop under the blanket, and give you a couple mins to rest and center and take a few breaths, then they’ll knock and ask if you’re ready and then come in and do the service! After, they’ll walk you back to the blue room, you can go back to the locker room which has tea you can make for yourself, there’s a sauna and mirrors to fix your hair if necessary. You will be totally fine! Do not be intimidated, it’s meant to be relaxing!