Well, clearly you want to continue with the things that you already know are working.
You might also reach out to your partners and others in complimentary (not competing) business and see if they'd be willing to share with you what marketing channels are working well for them. If they're in any places where you currently are not, you might consider advertising in those places, too.
If you have (or can get) some good video of people having fun using your product, that could be good, both for demonstrating how easy/fun it is and for attracting more attention to your product. A YouTube channel is free and could gain you a lot of attention, especially if one of your videos captures the popular imagination. (Pro tip: be sure to get signed model releases from anybody who appears in your photos or videos, customers and employees alike. Can save you a lot of legal headaches on down the road.)
Since most of your customers are women, you might consider starting a channel on Pinterest to further promote those photos and videos.
If you're not already set up with Google Local
, you definitely want to do that.
You might also consider AdWords. You can geotarget your local area so you're not advertising nationwide if you don't want to.
You might also check with your area/state tourism boards, visitor centers and your local Chamber of Commerce. It's possible they might have ideas to help promote your business, or might even be willing to help promote it, as it could be a "draw" to help bring additional tourism dollars to the area. They would likely at least allow you to put a brochure or flyer out at their offices for visitors to take.
Similarly, you could try to place brochures in other areas around town where tourists (and "staycationing" locals) might find them. Local B&Bs and hotels (and sometimes restaurants and diners) often have racks of brochures highlighting local attractions.
The idea is just to make sure your information is visible and easily accessible to people who might be looking for some fun activities in your area. These are just a few ideas to get you started. I'm sure once you start thinking about it, you'll come up with a lot more.