Sell the trial, then sell the membership
Ads that push 'join now' with a price convert poorly. We advertise a concrete first step — free class, 7-day pass, $1 intro week, InBody scan or a free personal-training assessment — and let the floor staff close the membership in person, where closing rates are far higher.
Structure: brand Search (people looking for you by name, always the cheapest leads), category Search ('gym near me', 'pilates studio', 'boxing classes', 'personal trainer'), competitor Search where allowed, and Performance Max once you have 30+ conversions a month. Radius bidding is tight, because members rarely drive more than 10–12 minutes.