Contextual advertisment for safaris?

I just noticed (on my own web site) a contextual ad from Google that seemed quite well targeted. Titled “Wildebeest migration” (gnus migration), it promotes a Tanzania safari en Tanzanie in June-July for this great moment of Nature: 15 millions gnus and 3 millions zebras simultaneously leave Tanzania to go back to Kenya. Big show!

Contextual ad is not bad at all, finally.