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Guam

Wrecks from two world wars, a heart shaped blue hole, and tropical walls in the Western Pacific

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Destination Guide Sources For Guam

Reference links used to build and maintain this guide.

34 sources • Updated Nov 4, 2026

Written by DiveJourney. Built from public sources and local operator knowledge. Last updated Nov 4, 2026.

Guam Visitors Bureau - Entry Formalities and Guam EDF - EDF mandatory, G CNMI ETA details, REAL ID timeline
Guam Customs and Quarantine - Guam Electronic Declaration Form - Official customs EDF portal
CBP - G CNMI ETA - Visa Waiver ETA for eligible nationals
NWS Guam - Climate - Dry and wet season overview
NWS Guam - Tropical Cyclones and Surf Zones - Typhoon season information
NWS Guam - Surf Zones - Rip current and surf hazard forecasts
Guam Coral Reefs - Marine Preserves Overview - CRMP boundaries and rules
DAWR Marine Preserves Pamphlet (PDF) - Preserve regulations summary
War in the Pacific NHP - Fees - No entrance fee to the park
War in the Pacific NHP - Asan Beach Unit - Visitor information for beach unit
Guam National Wildlife Refuge - Hours - Ritidian open days and closures
MDA Guam - Daily Boat - Local operator schedule and contact
Guam Tropical Dive Station - PADI listing - Local operator details
DiveJourney - Blue Hole - Internal spot page slug
DiveJourney - Tokai Maru - Internal spot page slug
DiveJourney - SMS Cormoran - Internal spot page slug
DiveJourney - Piti Bomb Holes - Internal spot page slug
DiveJourney - Tumon Bay - Internal spot page slug
DiveJourney - Sharks Pit - Internal spot page slug
DiveJourney - Boulder Alley - Internal spot page slug
DiveJourney - Hap's Reef - Internal spot page slug
GUM Airport - Airlines - Current carriers serving GUM
GUM Airport - Flight Schedule snapshot - Active regional routes and frequencies
GRMC - Wound Care & Hyperbaric - Hyperbaric services on island
GRMC - Emergency Department - 24 hour ER contact
GMHA - Emergency contact numbers - Hospital ER phone
USCG Sector Guam - emergency contacts - Joint Rescue Sub Center phone numbers
DAN - Emergency Hotline - Emergency hotline +1 919 684 9111
Visit Guam - Buses - GRTA hours and fares
Visit Guam - Electricity - 120V 60Hz confirmation
Visit Guam - Language & Currency - English and Chamorro; USD usage
Stroll Guam - App Store listing - Local ride hailing service
NWS Guam - Surf Criteria - Rip current and high surf thresholds
KUAM - Man o' war reports - Sting advisories context