The East Arm Little Calumet River, also known as the East Branch, flows through Northwest Indiana as part of the Little Calumet River system. Originating in LaPorte County, it meanders westward through Porter County before emptying into Lake Michigan near the Indiana Dunes National Park. This waterway forms a crucial part of the Lake Michigan watershed. The river offers over 11 miles of paddling opportunities through varied landscapes, from wooded corridors to open marshlands.

The East Branch Little Calumet River Water Trail provides two main paddling routes. The first stretches from Chesterton through Porter to Indiana Dunes National Park, while the second allows for an out-and-back trip near the river mouth at Lake Michigan. Characterized as flatwater, the East Arm Little Calumet is suitable for paddlers of various skill levels. However, as with any waterway, conditions can change, and paddlers should check current river levels before embarking on their journey.

Spring and early summer typically offer the best paddling conditions, with higher water levels and lush vegetation. Fall provides picturesque scenery as trees along the banks display vibrant autumn colors. Summer paddling is also popular but may require more careful navigation in shallower sections.

The river corridor supports a diverse ecosystem, home to numerous bird species, including great blue herons and bald eagles. Paddlers may also encounter deer, turtles, and various fish species in the clear waters.

A notable access point is the fully accessible launch site at Howe Road, part of the historic Camp Goodfellow canoe launch. This facility, opened in May 2019, provides improved river access for paddlers of all abilities. Other key put-in and take-out locations include Brandt Parkway and Mineral Springs Road.

The East Arm Little Calumet River holds significant ecological and recreational value for the region. Conservation efforts led by organizations like Save the Dunes, Shirley Heinze Land Trust, and the Northwest Indiana Paddling Association have focused on restoration and improving public access along the river.

For safety, paddlers should always wear life jackets and be aware of potential obstacles such as fallen trees or submerged rocks. It's advisable to paddle with a partner and inform someone of your trip plans. The USGS River at Porter website provides up-to-date information on river conditions.

While primarily suited for day trips, the 11-mile stretch could be divided into a leisurely two-day journey for those seeking a more immersive experience, with camping options available in the surrounding area. The East Arm Little Calumet River offers a unique blend of natural beauty and accessibility, providing an excellent opportunity for paddlers to explore one of Indiana's most picturesque waterways.