Challenge Description
The three words I would use to describe this location are…
Flag format: utflag{word1.word2.word3}
Osint Path
Based on the challenge description, we needed to identify where the picture was taken and locate it on https://what3words.com/.
First, look at the picture:
- The image shows inverted writing reflected on the water’s surface; this appears to be a park or greenspace.
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By reversing the characters in the image, I found a name starting with “AGUAS DE LIND…“. Searching Google revealed the full name “Águas de Lindoia” — São Paulo, Brazil:
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The Pictures tab contains an image that exactly matches the symbol in the challenge photo:
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Looking closely, I identified several important points:
- The symbol is placed on the lake bank, not on an island.
- In the background, there appears to be a hill and some buildings that look like a resort.
- The challenge photo may have been taken from the opposite side of the lake bank from the symbol’s location.
Next, I used Gemini to list resorts in Águas de Lindoia and found a resort named “Hotel Monte Real”:
Checking this result on Google Maps, I found the resort has a large lake, which matches our information:
Based on the image, I predicted the symbol is in the red zone and the photographer’s position is in the green zone:
I used https://what3words.com/ to systematically check locations along the lake bank in the green zone and found the flag at this location:
