This is common. I have worked at a few campgrounds, resorts, and hotels and can explain jt a little. Long and shortyou book through the booking site
The price quoted on hotel/resort/campground has a base price. They will dole out blocks of rooms/sites to third party booking sites. These sites often qont include fees for extra services that the hotels themselves often jnclude in their advertised price but tge services can be removed if requested. Thats one part of it.
The second part is these sites often use algorithms based on where you are, where the resort is, time, length of stay, math formulas that relate how many are booked to whats available with weather, dates, and while host if other parameters to come up with personalized pricing. Which can have drastic price differences from what the hotel charges. They sell so many rooms to a booking site at a large discount to garuntee occupancy, then the sites have all kinds of wiggle room on pricing. Sometimes the sites havent sold a block very well and in days leading up they might offer rooms at wjat they paidnir even beliw what they paid to get anything backnon those rooms.
The third part is often if a place is having a kow booking weekend ir dates, they will throw some got deals up on booking sites but not offer it to walk ins, call ins, or those using the businesses own site. It's just a tactic to boost bookings for potential last minute bookers while not sacrificing top dollar on walk ins and to also not have to make changes to their own site.
The last part too is, some booking sites when you search for prices give you the lowest prices they have listed for a place, however that isnt the actual price for the type of room or dates you're actually looking for and it asjust when you type in the dates and room type when you start booking.
