Luisa Zissman goes horse riding in bikini in Thailand saying she's at her 'happiest'

Luisa Zissman displays her abs in a blue bikini as she goes for a horse ride

Luisa Zissman displays her washboard abs in a pink bandeau as she poses for stunning selfie

Luisa Zissman showcases her svelte figure in a yellow bikini during her sun-soaked Thai getaway