The 5 mile long inlet that makes up Trepassey offers better shelter than the chart might suggest and very little swell seems to get into the inner reaches. If approaching from the east, the aptly named "Mistaken Point" can easily be mistaken for the entrance to Trepassey and it is tempting to turn inland too soon after rounding Race point.
The entire length of the Trepassey inlet is relatively shallow (10-15m) and it would be possible to anchor just about anywhere in the inlet depending on wind direction. The public wharf on the eastern side of the inlet is well maintained and has 3-4m alongside, electricity and fresh water, though the latter is not considered potable.
There are a couple of small convenience stores ashore, along with a very friendly motel which serves exceptionally good home cooked food in a dining room with stunning views. Try the traditional Newfoundland breakfast of fish cakes and toutons, or the fish chowder at lunchtime and you are unlikely to be disappointed. They also have good free wifi.
The terrain on the Powles Peninsula is wild open windswept moorland, not dissimilar in nature to that found in parts of Patagonia and the Falkland Islands and makes for good walking. The Powles Head lighthouse and the old artillery garrison on the peninsula are obvious walking destinations.