Glacier Bay 3070 Isle Runner 2008 boat specs
Glacier Bay
Glacier Bay 3070 Isle Runner 2008
2008
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VS
Glacier Bay 3480 Cuddy - Hardtop 2010 boat specs
Glacier Bay
Glacier Bay 3480 Cuddy - Hardtop 2010
2010
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Glacier Bay 3070 Isle Runner 2008 vs Glacier Bay 3480 Cuddy - Hardtop 2010 — Same Brand, Different Boat

The Glacier Bay 3070 Isle Runner 2008 vs Glacier Bay 3480 Cuddy - Hardtop 2010 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

The power gap is worth calling out. Rated to 600 hp, the Glacier Bay 3480 Cuddy - Hardtop 2010 has a 350-hp advantage over the Glacier Bay 3070 Isle Runner 2008's 250-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Glacier Bay 3070 Isle Runner 2008 carries 24 gallons versus 3 gallons in the Glacier Bay 3480 Cuddy - Hardtop 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Glacier Bay 3480 Cuddy - Hardtop 2010 is rated for 12 passengers, while the Glacier Bay 3070 Isle Runner 2008 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Glacier Bay 3480 Cuddy - Hardtop 2010 could be the deciding factor.

Bottom line: Choose the Glacier Bay 3480 Cuddy - Hardtop 2010 if your priority is putting more people on the water — it handles 12 passengers and at 37,5 ft it has the deck room to back that rating up comfortably. The Glacier Bay 3070 Isle Runner 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
General Boat Info
MakeGlacier Bay
MakeGlacier Bay
Model3070 Isle Runner
Model3480 Cuddy - Hardtop
Model Year2008
Model Year201
Measurements / Dimensions
Beam10 ft. 8 in. (3.25 m)
Beam13 ft. 3 in. (4.04 m)
Beam - Meters3.25
Beam - Meters4.04
Beam - Inches128
Beam - Inches159
Draft [drive up] - Detail28 in. (71 cm)
Draft [drive up] - Detailnot available
Draft [drive up] meters0.71
Draft [drive up] metersnot available
Draft [drive up] inches28
Draft [drive up] inchesnot available
Weight - Detail10,100 lbs. (4,581 kg)
Weight - Detailnot available
Weight - kg4581.28
Weight - kgnot available
Weight - lbs.101
Weight - lbs.not available
Length - Meters9.78
Length - Metersnot available
Length - Feet32
Length - Feet37.5
Length - Inches1
Length - Inchesnot available
Length overall - Detail32 ft. 1 in. (9.78 m)
Length overall - Detail37 ft. 6 in. (11.46 m)
Length overall - Meters9.78
Length overall - Meters11.43
Length overall - Inches385
Length overall - Inches45
Draft [max] - Detailnot available
Draft [max] - Detail32 in. (81.3 cm)
Draft [max] - Metersnot available
Draft [max] - Meters0.81
Draft [max] - Inchesnot available
Draft [max] - Inches32
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeCatamaran
Engine and Drivetrain
Fuel tank capacity - Detail240 gal. (909 l)
Fuel tank capacity - Detail300 gal. (1,136 l)
Fuel tank capacity - Liters908.5
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Gal24
Fuel tank capacity - Gal3
Fuel typeGas
Fuel typeGas
Drive typeOutboard - Twin
Drive typeOutboard - Twin
Engine max250 hp (186 kW)
Engine maxnot available
Horsepowernot available
Horsepower600 hp
Operational Info
Water capacity40 gal. (151 l)
Water capacity60 gal. (227 l)
Maximum people8
Maximum people12
Holding tank capacity - Detail18 gal. (68 l)
Holding tank capacity - Detail30 gal. (113.6 l)
Holding tank capacity - Liters68.14
Holding tank capacity - Liters113.56
Holding tank capacity - Gal18
Holding tank capacity - Gal3
Storagenot available
StorageFish Well: 18 x 15 x 60 in. (45.7 x 38.1 x 152.4 cm)
Performance
Maximum speednot available
Maximum speed36 mph (57.9 km/h with max hp)

Glacier Bay 3070 Isle Runner 2008 vs Glacier Bay 3480 Cuddy - Hardtop 2010 — Common Questions

Which is the larger boat — the Glacier Bay 3070 Isle Runner 2008 or the Glacier Bay 3480 Cuddy - Hardtop 2010?
The Glacier Bay 3480 Cuddy - Hardtop 2010 is the longer of the two at 37,5 feet overall. The Glacier Bay 3070 Isle Runner 2008 comes in at 32,0 feet, making it roughly 5,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Glacier Bay 3480 Cuddy - Hardtop 2010 is rated to a maximum of 600 hp, giving it the larger power ceiling. The Glacier Bay 3070 Isle Runner 2008 tops out at 250 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Glacier Bay 3070 Isle Runner 2008 is Coast Guard rated for 8 passengers, while the Glacier Bay 3480 Cuddy - Hardtop 2010 is certified for 12. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Glacier Bay 3480 Cuddy - Hardtop 2010 measures 159" wide, compared to 128" for the Glacier Bay 3070 Isle Runner 2008. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Glacier Bay 3070 Isle Runner 2008 or the Glacier Bay 3480 Cuddy - Hardtop 2010?
The Glacier Bay 3070 Isle Runner 2008 has the bigger tank at 24 gallons, versus 3 gallons on the Glacier Bay 3480 Cuddy - Hardtop 2010. That 21-gallon difference translates to roughly 63–105 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Glacier Bay 3070 Isle Runner 2008 and Glacier Bay 3480 Cuddy - Hardtop 2010 from the same manufacturer?
Yes — both the Glacier Bay 3070 Isle Runner 2008 and the Glacier Bay 3480 Cuddy - Hardtop 2010 are built by Glacier Bay. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.