Dear friend welcome to your dost. Have you tried to understand from her what are her interests,likes and talents and what she likes to do ,and encouraged her . Have you discussed with her in private why she is not willing to accompany you on leisure tours as a family ,there must be some reason which you need to know.
she may be discouraged by some core beliefs ,concerns and fears ,that may have roots from childhood,or other timeline .What about religious tours ? does she like them . You must know the perceived beliefs and fears that may be unexpressed and hidden within her mind . You need to understand her problem ,and have empathy for the feelings ,and encourage her by a reassuring and comfortable discussion .You can express to her your feelings on the family not getting together ,and let her visualize the happiness of just being together . Try taking her to places she prefers ,less adventurous dangerous ,and slowly get her to move and experience . Try to understand her core issues , support and encourage her to change gradually and slowly. Try to start by doing what she likes, atleast the family will be together. Often some sacrifices and compromises for the sake of family happiness are worth the try.