01
Source hierarchy
- Municipality and official statistics for geography and demand.
- Transport operator for network and live journey planning.
- Venue operator for access and operating detail.
- Official organiser for season dates.
- No derivative blog when a primary source exists.
02
Localization
Our guides are available in Dutch, English, German, Spanish and Italian. The language selector opens the corresponding guide. Material corrections are reviewed in every affected edition.
03
Corrections
Send the exact URL, disputed sentence and best available primary source to info@elpremier.com. A confirmed material error is corrected without payment; the claim, source note and check history change together.
04
Reliable travel advice
- No invented event dates, cave access, room availability or prices.
- No municipal figure presented as town-only.
- No affiliate payout treated as evidence of quality.
- Local advice stays specific to Valkenburg and its surroundings; country-wide comparisons belong in our Netherlands guides.