Shredding the slopes dictionary

One of the reasons skiing at Jasper's Marmot Basin is relatively inexpensive, apparently, is that the staff don't waste money on frivolous things like proofreading.

The Tonquin Valley delayed accuses closure has ended. You may now access Jasper National Park Backcountry; ski touring, snow shoeing and cross country skiing around Marmot Basin. If you are intending to access this area from Marmot Basin, please do so from appropriate and designated areas. Insure that you know where you are going, you are well prepared and make conservative travel decisions, as the snow pack is weak and highly variable.
What am I accusing the closure of, exactly?
Always use ensure unless you're talking about insurance.