@Katrina Cabral
Let's be talk about the 3 real reasons a property doesn't sell
1 Location, if the location is not desirable for your target customer you need to adjust the price. You said its an AirBnB, it sounds to me based on what I have read that your income from rent does not justified the price. The ROI just isn't there and investors are passing on it. You may need to consider taking off AirBnB and selling it vacant and AS IS. Let the next investor figure out a way to have it cash flow or hopefully get an homestead owner.
2 Condition, You may feel the property is priced well for it's current condition or level of finishes the property has. Are you selling the view or are you selling the property? In my opinion again only based on what I have read you are selling a 450K view because you said it "mine isn't spectacular". Might be time to ask yourself if you would pay your asking price.
3 PRICE, All roads always lead to price. If location is great but won't sell, adjust your price. If the condition can't justify the price, adjust the price. If your feed back is priced wrong, adjust the price.
You are in an area that is definitely desirable but you are in a state that many investor are going to steer clear from for a while. I personal worked with a seller in Hawaii, I was working with them as buyers here in Florida and the horror stories I heard from him and his agent that was listing his home in Hawaii were crazy to me. He was in a very similar setting and ended up last summer when (everything went over asking) reducing he home by about 10% to final sell and had to replace the roof. It took me having a real heart to heart with him to understand that it is all about the numbers. Nothing more Nothing less.
I hope it sells, I know the stress is probably giving you sleepless night. Good Luck