The first part of the bike ride to Hamme-Mille is slightly hilly.
Then in the area of Huldenberg, it becomes a bit hillier without any truly flat sections.
The passage through the Solvay domain, a park forest and extension of the Sonian Forest, is somewhat flatter again.
By the lake of Genval, a district of Rixensart, there are quite a few somewhat pricey eateries situated beautifully by the water.
The further passage through the Sonian Forest is a lovely piece of cycling along well-ridable yet unpaved forest paths.
The return trip through Overijse, Hoeilaart, Sint-Joris-Weert, and Bierbeek is again somewhat hillier without any truly steep inclines.
All in all, it is a challenging bike ride with 700 meters of elevation gain, for which good fitness is necessary.
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