Piti Bomb Holes lies within Apra Harbor on Guam's western shore and is one of the most accessible diving areas on the island. All three sites, Piti Bomb Hole, Piti Canal, and Fish Eye, are reached by shore entry and stay within twelve metres, making the area well suited to beginners and those returning to diving after a break. The habitats span natural reef, seagrass, and artificial reef structures. Visibility varies considerably across the sites, from modest to very clear depending on conditions. Nudibranchs including the mottled Spanish dancer and tessellated halgerda are recorded here alongside Napoleon wrasse, longhorn cowfish, and bluefin trevally.



Monthly water temperature across Piti Bomb Holes's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperature in Piti Bomb Holes is warm year-round, sitting around twenty-eight degrees in the cooler months and reaching thirty degrees through mid-year. Piti Canal can run strong currents despite its shallow depth, so beginners should time entries carefully.
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Water temperature around Piti Bomb Holes ranges from about 28°C in January to 30°C in July, based on satellite sea-temperature data for its dive sites.
With water around 28–30°C, a rash guard or 3mm shorty works in Piti Bomb Holes year-round.
Fin maps 3 sites in Piti Bomb Holes (3 scuba diving sites and 1 snorkelling spots, with some suited to both).
Across Piti Bomb Holes's dive sites, March, April, October, November and December are most often reported as the best months to visit.
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