In the afternoon of the same day when we did Ponta do Pargo hike we decided to also go and see Levada da Ribeira da Janela. We arrived there quite late - around 3 pm. As we didn't want to finish the hike in the dark we only went through the first tunnel and then turned back. The tunnels on this hike are long and narrow and wet. So you need good footwear and flashlight. The levada itself is very nice and full of fish. It took us in total 2.5 hours to go until the waterfall and back.
You can enjoy beautiful views and the levada itself is also very nice and wide.
Description of the full hike is available here: http://www.walkmeguide.com/en/madeira/trail/12/levada-da-ribeira-da-janela/
|Lushness of ferns|
|Waterfall between two tunnels|