Explainers
The Cruise Ships That Can (and Can't) Enter Glacier Bay
Only ~150 cruise ship entries per season, max 2 ships a day, $8.28 per passenger. Inside Glacier Bay's concession contract — and why most cruise lines can't enter at all.
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Explainers
How the rules work — PVSA, Glacier Bay permits, AIS tracking, and the policies that shape every Alaska itinerary.
Explainers
How We Track Cruise Ships: AIS, Itineraries, and Why Glacier Bay Goes Dark
Cruise ships broadcast their position via AIS — but coverage isn't perfect. Here's how CruiseMigration combines AIS, scheduled itineraries, and crew-of-port reports to build the live map.
Explainers
Inside Passage vs Gulf of Alaska: Which Cruise Route Should You Take?
Inside Passage and Gulf of Alaska are the two main Alaska cruise routes. Inside Passage is calmer and shorter; Gulf of Alaska adds Hubbard Glacier and routes you to Anchorage. Here's how to choose.
Explainers
Why Alaska Cruises Stop in Victoria: The PVSA Explained
Alaska cruises stop in Victoria, BC because of the Passenger Vessel Services Act of 1886 — not the Jones Act. Here's the actual rule, the 2026 Iran-War carve-out that doesn't apply, and the only US-flagged exception.