You're in Rio, so visiting that Big Guy up on the hill is definetely a must! Therefore, nothing better than to hike the Corcovado Mountain.
It is probably not a climb for the faint hearted as I understand there are a few tricky sections where you need to be careful. However, I'd say you need to be fit and adventurous.
The hike doesn't include the visit to the monument itself. Those who wish to visit the monument should have the ticket at hand.
To get back we will go by Minivan and the cost is 10.00R$
Difficulty Level: Hard
What to Bring: Light Clothes, hiking shoes (no flip flops or sandals), backpack, swimming suit, sunscreen, water (minimum 2lts), snacks (sandwiches are better than cookies).
Meeting Point: in front of the Bothanical Garden's main entrance at 2:32 PM
How to get there:
all these buses listed on the link below stop in front of the bothanical garden. so, look for the neightborhood where you're coming from (left column) and then see which bus to catch: