I will be in Rio for only a few days and am looking for no-gi training recommendations. Ideally it should be: - Welcoming of drop-in gringos: I will only be training there 3-5 days. - No-gi/Luta Livre: I'll be trekking through Bolivia and peru after Brazil so I won't have a bulky gi with me. It seems most gyms I've browsed online focus on gi training. Thanks guys.