What are the chances of seeing a Giant Cranefly in Snowdonia National Park?
With luck
About 10% of wildlife watchers report a Giant Cranefly sighting in Snowdonia National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 336th most-seen of the 387 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
When is the best time to see a Giant Cranefly in Snowdonia National Park?
May to August
In those months about 10% of wildlife watchers report a Giant Cranefly in Snowdonia National Park on a given day, against under 5% in September to April, the lowest months.
What time of day is best to see a Giant Cranefly?
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Giant Cranefly sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Is Snowdonia National Park the best place to see a Giant Cranefly?
Among the best
Of the 4 parks where we can rate Giant Cranefly sightings, Snowdonia National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Mercantour National Park (France, about 10%) and Pyrénées National Park (France, about 10%).
Where does the Giant Cranefly sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Giant Cranefly is recorded against all the insects logged in Snowdonia National Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.