Snowdonia presents no exaggerated danger to personal safety on a social front. Locals are well-used to tourists and appear to tolerate them admirably given the heavy footfall.
The greatest personal threat comes from conditions on the peaks. These can turn at short notice, often from a clear warm day to heavy cold rain, the latter of which Wales has in a plentiful supply. It is therefore strongly advised that warm clothing and waterproofs are packed for the peaks along with a good supply of water and some food high in carbohydrates. Always carry a suitable map. The Ordnance Survey (http://www.ordnancesurvey...) 1:25000 scale Explorer series are ideal, covering the whole national park on 3 double-sided sheets. Alternatively the 1:50000 scale Landranger series, though these are less detailed due to the smaller scale. Harveys Maps (http://www.harveymaps.co.uk/) also produce excellent quality maps of the main mountain areas, specifically aimed at hillwalkers.
Some 70 people a year are injured seriously on Snowdon alone and around 10 lose their life. Accidents occur mostly on descent where fatigue and speed is greater. Follow the Mountain Safety Code to reduce your chances of becoming part of these statistics:
Before You Go
Learn the use of map and compass
Know the weather signs and local forecast
Plan within your capabilities
Know simple first aid and the symptoms of exposure
Know the mountain distress signals
Know the country code
When You Go
Never go alone
Leave written word of your route and report your return
Take windproofs, woollens and survival bag
Take map and compass, torch and food
Wear climbing boots
Keep alert all day
Avoid disturbance to farming, forestry and field sports
If There is Snow On The Hills
Always have an ice axe for each person
Carry a climbing rope and know the correct use of rope and ice axe
Learn to recognise dangerous snow slope
fees/permits
There are no fees for entering or leaving Snowdonia National Park.