| Routes | Across | % Correct |
|---|---|---|
| Bulgaria-Georgia/Ukraine, Turkey-Russia/Ukraine, Russia-Georgia | Black Sea | 100%
|
| Azerbaijan-Kazakhstan/Turkmenistan | Caspian Sea | 94%
|
| Germany-Sweden, Russia-Russia | Baltic Sea | 88%
|
| Mexico-United States | Gulf of Mexico | 88%
|
| China-China | Yellow Sea | 82%
|
| Turkey-Turkey | Bosphorus | 76%
|
| Uganda-Kenya/Tanzania | Lake Victoria | 76%
|
| United States-United States | Pacific Ocean | 71%
|
| Canada-Canada | St. Lawrence River | 71%
|
| Bolivia-Peru | Lake Titicaca | 59%
|
| Italy-Italy | Tyrrhenian Sea | 59%
|
| New Zealand-New Zealand | Cook Strait | 53%
|
| United States-United States | Hudson River | 53%
|
| China-China | South China Sea | 41%
|
| Russia-Russia | Strait of Tartary | 35%
|
| Turkey-Turkey | Lake Van | 24%
|
| Canada-Canada | Salish Sea | 18%
|