It looks like the STR regulations are fairly easy to navigate and it seems to be a popular vacation destination.

Reach out to Airbnb, they have a platform for that and we used them and they find local photographers that do great work.

What platforms do you folks recommend for listing a Single Family home in CA for long term rental? 

I'd probably try FB marketplace first and see how it goes, then if that doesn't help look for a good advertising platform like buildium (which is probably too robust of a tool for what you need right now, but something with just that advertising feature).  

Cart rental is very popular in the area.

Airbnb/VRBO do bring in about 60% of our bookings but that does leave another 40% to direct bookings and a combination of our other platforms (Marriott Homes and Villas, Booking.com, JetBlue and Allegiant Airlines, Google Vacation Rentals, and more). 

Cozy is popular among a lot of investors I have talked to.

There also seems to be a monthly fee for using the platform.

We ran the numbers, analyzed the property multiple times, and based on AirDna, and other platforms, it looks quite promising.

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