This is a wonderful spot to fish at during April and even into early May. It's nothing in terms of size with White Clay but it has a certain specialness to it.
Unlike ...more virtually every other state, this particular spot right on the DE/PA border is located in what is considered to be an ultra-rare geological area of the state where the ground you're standing on isn't either dead flat or within 100 feet or so of sea level. Also both the upper (The Waterfall) and lower (The Rock) fishing spots are literal STEPS away from where you can park on the side of the road.
Additionally I'd like to point out that the lower spot (the one with the enormous boulder that you can both comfortably stand on and safely fish from) provides a legitimate fish-spotting vantage point that might unique to any other trout stream in the entire state/New Castle County.
Unless it's recently rained a whole lot, if you stand on top of "The Rock" and look down into the water with polarized sunglasses, you can see where most of the trout are hanging around first, thus giving you a GREAT advantage and opportunity to literally cast your bait/lure directly into the area where the trout are. I find that area in particular to be the PERFECT place for me to test out new rigs, bait, colors and scents.
Furthermore, due to the clarity of the water and the light tan color of the sand on the creekbed in ideal conditions, from up on top of "The Rock" you can observe how high or low your variable-height slip rig that's set up with floating bait actually PRESENTS itself in the water, which is an invaluable tool that can make or break your day if you're someone who prefers a simplistic PowerBait/Dough Bait rig. Trout attack potential food targets from the bottom-up, if your leader is too low or too high and you otherwise have no idea then you just might be in for a day consisting of many casts with little to no results.
One final point - it truly is tragic that DNREC only stocked here a total of 3 times in April, at least in 2022 (4/2, 4/7, 4/11) not to mention that the fish DNREC used to re-stock the streams on 4/7 and 4/11 (not just here, but STATEWIDE) were ridiculously small Rainbows that unquestionably could have used a few weeks more time eating their faces off with food pellets in the fish hatcheries (the trout that are in there now - as of 4/25/22 - are as small as SIX INCHES and no larger than maybe 11").
Anyway, if you've got waders or at least tall rubber boots you'll be able to put them to good use at the waterfall, and for safely reasons I DO NOT RECOMMEND FISHING FROM ON TOP OF THE WATERFALL DOWN INTO THE CREEK BELOW YOU, unless you think getting a potentially major head injury in rather cold April water is the "cool" way to get results while trout fishing.
Enjoy yourselves here and always make sure you take home what you brought with you to Beaver Run (both Trout AND trash/fishing line). We only have SEVEN total stocked streams, let's keep them clean for years to come, that's not asking too much!