Some years ago when I was living in Italy, I remember reading an article in the IDEA Fitness Journal or seeing an advertisement written by someone named Jim Labadie. As far as I can remember, he has been very successful in running boot camps.
Why don’t you try googling that name to see what you come up with. From what I remember he one of the best in the industry as far as setting up successful boot camps.
All the best to you.
If you don’t have a huge budget, I would suggest setting up an informative and easy-to-use website to promote the days, times, and locations of the boot camp (having pictures and information is helpful). Provide visitors to your site ways to sign up through your website and pre-pay. Once you think you have an inviting, informative, and easy to use site, set up a Google Adwords campaign that links to your site. Use “Boot Camp” for your keywords and set your daily price to whatever budget you’re working with (I would start at $50/month). You could also consider craigslist posts with links to your site.
Groups of women LOVE boot camps, so tap into small communities with new moms who might want to socialize while losing some of that baby fat. Word of mouth when you get into those kinds of circles can bring you LOTS of business! I would say that half of my clients are referrals. It takes a while and takes a lot of patience, but just keep working at it. You may lose some money in the beginning and only have a couple of people, but if it’s a success with them, they will surely share their experiences with friends and bring you more clients. 🙂
Hope that helps!