Dorchester County, MD · Chesapeake Bay

Great Marsh Park (Gerry Boyle Park)

A Cambridge waterfront park at the end of Somerset Avenue on the Choptank River. Small sandy beach, boat ramp, docks, playgrounds, pavilions, and walking paths. Free and pet-friendly — Cambridge's easy-access public waterfront.

Eats & Drinks 27 Charters & Tours 7 Stay 2

Today's Conditions

Ideal for a beach walk.

82°F water · 85°F air

Full NWS forecast for This Afternoon

Sunny, with a high near 85. South wind around 14 mph, with gusts as high as 22 mph.

Tonight

Mostly clear, with a low around 72. South wind around 14 mph, with gusts as high as 22 mph.

Weather

85°F air — ideal beach weather
Sunny skies — clear conditions

Water

82°F water — warm — full-day swim weather
Moderate nettle risk — 59% probability — expect some stings

76 /100

great

72 Swim

78 Sunbathe

85 Walk

71 Fish

80 Photo

Best for walking today

Get Directions View on Google Maps Open in Apple Maps

Atmosphere

Air Temp

85°F

Partly Cloudy

Wind

14 mph

Rain

This Afternoon

UV Peak

7 High

High 12 PM–03 PM · burn in ~29m

Burn-free before 09 AM & after 05 PM

Tomorrow

89°F

Mostly Sunny

Water

Water Temp

82°F

Swimming weather

Next Low Tide

9:51 PM

0.3 ft · in 2.6h

Sea Nettles

Moderate nettle risk

59% probability · Gooses Reef buoy

Sun & Moon

Sunrise

6:40 AM

Sunset

7:23 PM

Moon · 5%

Waning Crescent

Spring tides — bigger range

Tides

Time	Type	Height
3:04 AM	High	2.4 ft
9:55 AM	Low	0.6 ft
3:13 PM	High	2.1 ft
9:51 PM	Low	0.3 ft

Time	Type	Height
3:52 AM	High	2.4 ft
10:39 AM	Low	0.5 ft
4:06 PM	High	2.2 ft
10:45 PM	Low	0.4 ft

Time	Type	Height
4:35 AM	High	2.3 ft
11:20 AM	Low	0.5 ft
4:57 PM	High	2.3 ft
11:36 PM	Low	0.5 ft

Time	Type	Height
5:17 AM	High	2.3 ft
11:59 AM	Low	0.4 ft
5:45 PM	High	2.3 ft

Time	Type	Height
12:24 AM	Low	0.6 ft
5:58 AM	High	2.2 ft
12:37 PM	Low	0.4 ft
6:31 PM	High	2.3 ft

Time	Type	Height
1:11 AM	Low	0.7 ft
6:39 AM	High	2.1 ft
1:15 PM	Low	0.4 ft
7:16 PM	High	2.3 ft

Time	Type	Height
1:58 AM	Low	0.8 ft
7:21 AM	High	2.1 ft
1:55 PM	Low	0.4 ft
8:02 PM	High	2.2 ft

High/low predictions from NOAA station 8571892, refreshed on every build. Times shown local.

7-Day Beach Day Forecast

Today Sep 9

85°

Sunny

Thu Sep 10

89°

Mostly Sunny

10%

Fri Sep 11

82°

Chance Rain Showers

31%

Sat Sep 12

83°

Chance Rain Showers

43%

Sun Sep 13

85°

Showers And Thunderstorms Likely

65%

Mon Sep 14

85°

Mostly Sunny

Tue Sep 15

85°

Mostly Sunny

What to Bring Today

recommended SPF 30 sunscreen UV index 7 — high
recommended Sturdy umbrella + sand anchor 14 mph wind
optional Swimsuit - water is swimmable Water is 82°F

Always remember water bottle, trash bag (leave no trace).

Best Fishing Times Today

Solunar theory: fish activity peaks at moon transits (major) and moonrise/moonset (minor). All times local.

Major

10:30 PM - 12:30 AM

Minor

4:30 AM - 5:30 AM

Major

10:50 AM - 12:50 PM

Minor

6:20 PM - 7:20 PM

Beach Info

Parking

Free lot.

Dogs

Leashed dogs welcome throughout the park.

Entry Fee

Free

Address

Somerset Ave, Cambridge, MD 21613

Amenities

beachboat rampdockspavilionplaygroundsplaying fieldwalking paths

Frequently Asked

Is it safe to swim at Great Marsh Park (Gerry Boyle Park) today?

Great Marsh Park (Gerry Boyle Park) shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.

Is Great Marsh Park (Gerry Boyle Park) dog-friendly?

Leashed dogs welcome throughout the park.

Is there an entry fee at Great Marsh Park (Gerry Boyle Park)?

Entry to Great Marsh Park (Gerry Boyle Park) is free.

Are there lifeguards at Great Marsh Park (Gerry Boyle Park)?

No lifeguards are stationed at Great Marsh Park (Gerry Boyle Park). Swim at your own risk and keep close watch on children.

What amenities are at Great Marsh Park (Gerry Boyle Park)?

Amenities at Great Marsh Park (Gerry Boyle Park) include beach, boat ramp, docks, pavilion, playgrounds, playing field, walking paths.

When is the water warmest at Great Marsh Park (Gerry Boyle Park)?

The Chesapeake warms quickly — water temperatures peak in late July and August, typically 78-82°F. Swimming comfortable from mid-June through September.

Where is Great Marsh Park (Gerry Boyle Park) located?

Great Marsh Park (Gerry Boyle Park) is in Dorchester County, MD, at Somerset Ave, Cambridge, MD 21613.