Photo: via Wikimedia Commons, CC BY-SA 3.0
Striking basalt columns, similar to the Giant's Causeway, but only visible from the sea. Boats departing from Playa Santiago and Valle Gran Rey offer weekly trips around the island to visit it. Its name is because of the rocks, shaped by water and lava as church organ tubes.
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With El Castillo del Mar - former loading station (mostly for bananas), which had been restored and turned into a venue by a long-time resident German photographer but is permanently closed now.
Mirador de Agulo
Viewpoints towards Tenerife, a bar with a glass extension hanging over cliff over Agulo. Great panoramatic view and a road through red-colored mountain
Very eerie in the mist if the trees are creaking. Beautiful carpets of Canarian geranium in spring. For a very intense "old forest" experience, hike Las Hayas - Las Creces - Raso de la Bruma - Mirador Risquillos de Corgo - Cañada de Jorge - Las Creces - Las Hayas.
Area around a big clearing, which is the actual La Laguna Grande. There's a small park and a few footpaths towards a viewpoint of Alto de Garajonay. Good place for a short hike with kids, with playgrounds, BBQ areas, a restaurant and parking lot.
A UNESCO World Heritage site - extensive forested area on the top of the island. It protects the largest laurel rainforest remaining on Earth, "almost as old as the island itself" — the vegetation type has stayed the same for millions of years. The forest is made up of different evergreens flourishing under the mild temperatures. Trees are irrigated by the mist which sometimes covers the top of the island, especially in winter. The trees are covered in mosses and lichens. This environment extended all around the Mediterranean Sea in the Tertiary Era, so the National Park is considered a living relic. Several species endemic to the Canary Islands live here, including the Gomeran lizard, Gomeran skink, stripeless tree frog, laurel pigeon and Bolle's pigeon. Crisscrossed with footpaths of several difficulty levels, it is known as the green heart of La Gomera. Highlights include:
Specific part of the Garajonay National Park and the Laurisilva Forrest. Despite the name, these are not cedar woods (the name refers to a long gone lone cedar tree). One possible way is starting from the parking lot Los Contaderos (GM2, close to Alto de Garajonay) and hiking north/north-east downhill to El Cedro (or even to Hermigua) - the landscape changes from small, mostly dry vegetation to a dense forest with tall trees, and beautifully calm. There are many other walking routes around the forest. Don't miss the water tunnel through the mountain. Take a torch and mind your head! And bring boots as the water can be six inches deep or more. Do not access when it is raining! Access to El Cedro is possible also by car, via a road made from seemingly loose flat stones - fun auditory experience, as car moves the stones slightly. On the path between El Cedro and Hermigua, there's a waterfall which is the only one in La Gomera that has water all year long.