O Arco

Type:

Scuba DivingSnorkeling

Entry:⚓Boat Entry

Difficulty:Unknown

Tags:

Reef

About This Dive Spot

This site is reached by a short boat ride from the marina at Ponta Delgada. The seabed is made up of volcanic rock. A main arch feature rises about 3–4 meters high, making it a notable structure of the dive.

Planning details

Reported depth and seasonality.

Depth note

The main arch is described as being about 3–4 meters high.

Safety & access

Hazards, restrictions, and required precautions.

Hazards

Overhead environment

Safety notes

The arch creates an overhead area; maintain appropriate clearance and buoyancy control when approaching or passing through.

Local intel

Community notes to help plan your visit.

Tailored notes for different activities.

Scuba

Volcanic rock terrain with a prominent arch feature.

Dive Spot Log Averages

Average conditions based on logged dives & visits

No community dive data has been logged here yet. Be the first to record a dive and seed the averages.

Dive Conditions Planner

Current snapshot, today hourly conditions, and seven-day planning data.

Current snapshot

Right now

--🌥️Variable

Weekly trends

Marine rhythm

Surface outlook

Unlock the full potential of DiveJourney.

Recent Logged Visits

No Dive Logs Yet

Be the first to log a dive at this spot and share your experience!

Spots Near O Arco

📍 0.2 km

Lavakita

Not Set

Underwater lava flows form volcanic walls, creating a dramatic seascape. There is the possibility of encountering an unidentified shipwreck along with anchors. The site also offers the possibility of deep dives and supports a variety of marine life sightings.

📍 0.5 km

Arco do Cavaco

⚓

Dive site reached by a short boat ride from a marina, featuring volcanic arches and finger-like walls along the coastline. The terrain supports drift-style dives, with shallow profiles reaching about 25 m. The spot’s name is linked to its nearby chocolate factory.

📍 0.6 km

Willy Wonka

⚓

This dive spot sits a short distance from a marina and is known for being located in front of a chocolate factory. The site is made up of volcanic rock formations. Depths range from about 7 m to 19 m, and the route includes swim-through arches of varying sizes.

📍 1.8 km

Dori Wreck

Not Set

A large wreck measuring about 130 m long and roughly 30 m wide, with sections partially destroyed but several features still clearly visible. Divers can see intact structures such as the anchor, cargo winches, controls, the engine, and the propeller. The shallowest parts of the wreck are around 12 m, with the stern at about 18 m and the bow reaching a maximum depth of about 22 m. The site is described as no-penetration.

📍 2.2 km

Arcos Cruzeiro

Not Set

This dive features volcanic arches found around 30 m, making it appealing for deeper profiles. The site also offers a shallower start around 12 m, with an option to stay to about 18 m for open water divers without going to the arches. Marine life sightings can include slipper lobster, sea bream, wrasse, hogfish, filefish, spiny spider crab, and triggerfish.

📍 2.7 km

ILHÉU DE SÃO ROQUE

⚓

A short boat ride from Ponta Delgada marina, this site features a sandy bottom in shallow water and a volcanic wall that runs from the surface down to the seabed. It’s well suited to entry-level divers, with depths typically between 5–10 m. Marine life commonly includes a variety of reef fish and invertebrates along the wall and over the sand.

Loading nearby spots...

Frequently Asked Questions

What's the best entry point at O Arco?

Entry at O Arco is detailed in the spot description above. Look for specific landmarks, access paths, and any tide or condition requirements. Local divers often share updated entry tips in their dive logs.

What conditions are best for diving O Arco?

Optimal conditions at O Arco depend on several factors including tide, wind, and season. Check recent dive logs for current condition reports and patterns. Generally, calmer seas and high tide provide better visibility and easier entry.

What is the maximum depth and typical visibility at O Arco?

Depth and visibility information for O Arco can be found in the spot details and recent dive logs. Conditions can vary significantly based on weather, tide, and season. Always plan your dive according to current conditions and your certification level.

Are there any safety considerations or local etiquette at O Arco?

When diving O Arco, respect local regulations, marine life, and other water users. Be aware of any specific hazards like currents or boat traffic mentioned in the spot description. Follow Leave No Trace principles and local diving etiquette.