What is the best time to dive Tobermory (Fathom Five)?

The best months to dive Tobermory (Fathom Five) in Canada are June, July, August, September. Water temperatures range from 4°C to 18°C during peak season.

How deep is Tobermory (Fathom Five)?

Tobermory (Fathom Five) reaches a maximum depth of 35 m, with visibility ranging from 5–20 m. The full depth range requires Advanced certification at minimum; some zones are technical diver territory.

What marine life can you see at Tobermory (Fathom Five)?

Tobermory (Fathom Five) is known for encounters with lake trout, smallmouth bass, rock bass, crayfish, freshwater clam. The site features wreck, freshwater, shore diving across 22 named sites, with a marine life score of 25/100 in OkToDive's ranking.

Is Tobermory (Fathom Five) good for beginners?

Tobermory (Fathom Five) is better suited to experienced divers. Currents can be mild and depths reach 35 m. A minimum Open Water certification is required, and OkToDive recommends at least 100 logged dives before visiting.

How much does it cost to dive Tobermory (Fathom Five)?

A 2-tank dive at Tobermory (Fathom Five) averages around $80 USD, placing it in the mid range tier. Shore access keeps costs low — many dives can be done independently without a boat.

Tobermory (Fathom Five) Diving — Score: 53.8/100 | Conditions, Operators & Guide

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World Class

Beginner Friendly

Tobermory (Fathom Five)

CanadaNorth America

53.8

SCORE

45.2584°N

-81.6645°E

Fathom Five National Marine Park at Tobermory, Ontario protects 22 shipwrecks in the crystal-clear waters of Georgian Bay. The Sweepstakes and City of Grand Rapids are visible from the surface, and deeper wrecks reward advanced divers. Canada's most popular freshwater diving destination with well-managed infrastructure.

Ontario's Freshwater Wreck Park

Visibility5–20 m

Temperature4–18°C

Max Depth35 m

Currentmild

2-Tank Dive$80

Best MonthsJune, July, August, September

CertificationOpen WaterBeginner Friendly

Score breakdown

Click any score to see a detailed breakdown

Marine Life

25.0

Species diversity, megafauna encounters, reef fish abundance, macro life, and endemic species.

Species Diversity

Megafauna Encounters

Reef Fish Abundance

Macro Life

Endemic Species

Marine life diversity

25.0

Coral & reef health

8.0

Visibility & conditions

58.0

Dive site variety

70.0

Water temperature

22.0

Depth & access

65.0

Operator quality

75.0

Topside experience

68.0

Getting there

55.0

Value & cost

72.0

Crowding

60.0

Social proof

68.0

Key species

lake trout smallmouth bass rock bass crayfish freshwater clam

Dive types

wreckfreshwatershore

Traveling with non-divers?

Your non-diving travel companions will find plenty to enjoy topside while you're underwater. Here are some activities to consider.

Activities for non-divers

Bruce Peninsula National Parkglass-bottom boat tourGrotto hiking trailFlowerpot Island

Nearby cultural sites

Fathom Five visitor centre
Bruce Peninsula Grotto

Non-diver score

8/10

Excellent for non-divers — they'll love it here.

Family FriendlyYes

Restaurants & Nightlifebasic

Safety & emergency

Dive insurance

DAN recommends dive insurance for all divers.

Learn more at DAN.org

Hyperbaric Chamber200 km — Toronto General Hospital Hyperbaric Unit

Nearest Hospital30 km

Local hospital in Owen Sound; chamber at Toronto General (3+ hours); helicopter available

Skill LevelBeginner Friendly

Current Strengthmild

Top operators

Divers Den

PADI

4.6

210 reviewsNITROX

G&S Watersports

SSI

4.5

150 reviewsNITROX

Compare this dive site

Tobermory (Fathom Five) in Canada scores 53.8/100in OkToDive's 12-category data-driven rating. Best for wreck diving with 5–20m visibility and 4–18°C water temps. A 2-tank dive costs ~$80 USD. Peak season: June, July, August.

Last updated: 2026-05-25

Who should dive here

Best for

+ Newly certified divers building confidence
+ Wreck diving enthusiasts
+ Groups seeking 22+ named dive sites in one area

Skip if

− You don't have Advanced certification
− You hate cold water — temps drop to 4°C

Verdict

Choose Tobermory (Fathom Five) over similar North America destinations when operator quality matters more than coral health

How Tobermory (Fathom Five) compares

Site	Score	Visibility	Cost/dive	Best for
Tobermory (Fathom Five)	53.8	5–20m	$80	wreck, freshwater
Palm Beach (Drift Diving)	72.0	15–30m	$110	drift, reef
Lanai	70.3	20–45m	$200	reef, wall
Cabo San Lucas	70.0	10–30m	$120	reef, wall
Dry Tortugas	67.0	18–40m	$180	reef, wall

Honest reality check

What your dive shop won't tell you

The minimum certification printed on a brochure is the legal floor, not the honest recommendation. Here's what we actually think you should bring to this site.

Recommended logged dives

55+

Below this we'd send you somewhere easier first.

Recommended certification

Advanced Open Water + Drysuit specialty

“Accessible to most certified divers with basic open water skills.”

What will challenge you

→Recreational limit of 40 m is reachable here (max depth 35 m). Gas planning and NDL tracking matter.
→Cold water — 4°C at the coldest. Drysuit recommended; wetsuit divers will be genuinely cold past 30 minutes.
→Wreck penetration requires Wreck specialty training at minimum, and often decompression planning. Don't improvise inside.
→Nearest hyperbaric chamber is ~200 km away. Evacuation is slow. Dive conservative profiles and get DAN insurance before you fly.

What will surprise you

→Short dive season — only 4 months worth going (June, July, August, September). Book well ahead or miss it.
→Permit-restricted access. Book 6+ months ahead through a licensed operator.

Time of day

When to dive it

Every dive shop gives you this briefing at 7am. We just wrote it down. Tidal dependency: slight. Optimal window: First light to 11am for best visibility..

Morning

Viz
moderate
Current
mild
Crowd
light

reef exploration
photography

Best light and calmest conditions before afternoon wind picks up.

Afternoon

Viz
moderate
Current
mild
Crowd
moderate

drift diving
second tank

Wind chop can reduce viz. Still diveable but morning is better.

Month-by-month

Dive forecast

Realistic conditions by month. Viz ranges are what you should actually expect, not best-case marketing numbers. Confidence % is the share of days that match this profile historically.

Month	Viz (m)	Temp (°C)	Current	Sea	Rain	Confidence	Highlights
Jan	5–13	4	Mild	Mod	Light	70%	wreck visibility good, peak season crowds
Feb	5–13	4	Mild	Mod	Light	70%	wreck visibility good, peak season crowds
Mar	5–13	4	Mild	Mod	Light	70%	wreck visibility good, peak season crowds
Apr	5–13	4	Mild	Mod	Light	70%	wreck visibility good
May	15–20	18	Mild	Calm	Dry	70%	wreck visibility good
Jun	15–20	18	Mild	Calm	Dry	70%	wreck visibility good
Jul	15–20	18	Mild	Calm	Dry	70%	wreck visibility good
Aug	15–20	18	Mild	Calm	Dry	70%	wreck visibility good
Sep	15–20	18	Mild	Calm	Dry	70%	wreck visibility good
Oct	5–13	4	Mild	Mod	Light	70%	wreck visibility good
Nov	5–13	4	Mild	Mod	Light	70%	wreck visibility good
Dec	5–13	4	Mild	Mod	Light	70%	wreck visibility good

Shoot here

Photography brief

Subjects are only half the shot. A perfect macro site is useless in a three-knot drift, and a wide-angle dream is useless at 35 m with a murky ceiling. These are the conditions, not the hype.

Macro subjects58

Wide angle45

Viz stability50

Hover friendliness100

Natural light41

Recommended kit

→Dedicated video light for dark wreck interiors; don't rely on strobes alone
→Cold-water housing — condensation is a real issue below 18°C, bring silica packs

Level up here

What this site will teach you

The dives that made you a better diver are the ones that made you uncomfortable for the right reasons. Here's what this site will quietly train you for.

Deep diving comfort
advanced
Regular dives past 30m build confidence at depth.
Self-reliant navigation
foundational
Shore entries mean you plan your own dive.

What it costsEstimates — calibration pending

7-day trip, per person

Rough ranges anchored to existing regional data — not booking quotes. Land-based trip, standard breakdown.

Budget

$1,300–$2,050

Hostels, shore diving, cheap eats

Flights (RT from US): $180–$220
Accommodation / day: $50–$100
Diving / day: $70–$80
Food / day: $30–$60
Transfers + misc: $50–$150

Mid-range

$2,300–$3,650

3-star hotels, standard boat ops, mix of restaurants

Flights (RT from US): $360–$440
Accommodation / day: $120–$220
Diving / day: $80–$100
Food / day: $70–$120
Transfers + misc: $50–$150

Splurge

$4,250–$7,500

Top resorts or liveaboards, premium operators

Flights (RT from US): $630–$770
Accommodation / day: $260–$500
Diving / day: $100–$140
Food / day: $150–$300
Transfers + misc: $50–$150

Budget decision guide

Choose Budget if you prioritize dive count over comfort — hostels and shore diving maximize bottom time per dollar. Choose Mid-range for the best balance of comfort and value — most divers land here. Choose Splurge for premium operators, private guides, and top-tier accommodation — worth it for special trips or non-diving partners.

Flights priced round-trip from a major US hub. Figures are per person on a shared room. Solo travelers add ~30% to accommodation.

Pair with

Build a trip around it

Most divers fly across the world for one destination and don't realise another worth-it site is 90 minutes away. Here are the honest pairings.

Best dive types here

Tobermory (Fathom Five) Diving — Canada