Building on the large body of evidence for the effect of exercise in decreasing depressive symptoms and the few preliminary findings of its effect on craving and drinking outcomes, the purpose of this study is to develop a lifestyle physical activity (LPA) intervention that harnesses the technological advantages of the Fitbit tracker (plus its web and mobile platforms) for depressed women with alcohol use disorders (AUDs). The intervention will provide women with an acceptable, flexible and effective alternate coping strategy during early recovery, when relapse risk is highest. The overall objective of this work is to fully develop this LPA+Fitbit intervention, modify it based on initial piloting and feedback to ensure its feasibility and acceptability for depressed women with AUDs in early recovery, propose potential mechanisms of its effect, and to obtain preliminary data on its efficacy.