Most of the "action" will be down near the water but be sure the check out the woods along the road going in, too.

Almost at the end of the road, on the right, is a small pond. Check this pond for shorebirds in the wintertime. 

In November, 2023, when the lake was 60% full, there was a second smaller pond closer to the lake which held ducks and attracted Great Egret and Great Blue Heron. 

Willows along the shoreline may host spring migrants.

It appeared, in November 2023, that this park and marina are not fully functional or operational, so not sure how busy this location may or may not be.

Winter waterfowl. 

From the U.S. Army Corps of Engineers website:

Big Creek Park and Marina Deepwater Holdings Inc. RV and tent camping, boat ramp, courtesy dock, fishing dock, restrooms

From Texas Parks and Wildlife Department website:

• From Somerville go 3.5 miles north on Texas 36 to FM 60 north of Lyons. Turn left and travel 3.7 miles to Recreational Road 4 and turn left. Road ends at Big Creek Park
• Ramp will accommodate all boat types
• $3 launch fee
• Open all year
• Privately operated (979) 596-1616

No specific trail.