There is no printed guide to Bella Vista.
There are a number of informative websites to help you plan and navigate your visit. Discoverbellavistaar.com is the official website designed for visitors. You can find links to all restaurants, where to sleep, where to play on the site. Upcoming events are listed on the Event Calendar with links to the host site with the latest information.
There is extensive information on Property Owners Administration amenities. Bella Vista is not a gated community, but much of it is privately owned and maintained. Staying in a Bella Vista vacation rental may include privileges to use different amenities. Ask your host. Golf courses operated like golf courses everywhere. You can book tee-times on any of the seven courses and get information directly from the pro-shop.
All of Bella Vista trails are free and open to the public. Tanyard Creek Trail is for pedestrians only. Everything else is multi-use and available for hikers and riders alike. A good site to find detail and plan your walk is Where to Walk in Bella Vista.
A number of websites and Facebook groups have been created and managed for the Mountain Bike Community. New trails are continually being built and weather and trail conditions change frequently. Most of the folks maintaining trails and updating information are volunteers. They are dedicated and very responsive to questions on the Facebook pages.
https://www.alltrails.com/us/arkansas/bella-vista
https://www.facebook.com/groups/1503992553243925/
https://www.facebook.com/NWATrailblazers/