Viator Exclusive: Early Access to Sugar Loaf in Rio de Janeiro. Be among the first to stand at the top of Sugar Loaf Mountain without the hordes of visitors on this morning Rio de Janeiro tour — a Viator Exclusive that can't be booked anywhere else. Ascend the iconic site in a glass-enclosed cable car, and then snap unobstructed photos from the summit. No long lines and magnificent views during 1.5 hours of free time, plus the convenience of air-conditioned hotel transport, make this wallet-friendly tour a winner. Book and Save 10%: Viator Exclusive: Early Access to Sugar Loaf in Rio de Janeiro.