I finally found the beach/fishing cart I always wanted to get. I fish off the beach of Hutchinson Island in Florida. About 75 yards of deep sand from the dune to the edge of the water. I like to take my rods, sand spikes, buckets, cooler, tackle box, beach umbrella and 2 chairs (one for my wife). Believe it or not, everything fits, and the superb large gray poly wheels make it very easy to pull or push thru the sand. I also purchased an attachment to hook it up to my bike, the chairs holder, the liner and a front wheel to go over the dune using the ramp. I really didn't need the front wheel, because i can just use the front handle or the bike attachment to pull it easily. I'm very excited about what i call "the beast". By the way if you are not sure what kind of pump you need to keep the proper tire pressure, just get a hand pump and gauge for balls (basketballs, soccer balls).
I'm very analytical, and researched these carts for a long time, but I finally accepted that I needed help putting together a good combination of what's out there, without buying things that i didn't really need, so I called BlueWater Outriggers to tell them exactly what i was looking for, and with all the patience in the world, they helped me put together "the beast", (large cart, liner, bike hitch, chair holder, front wheel).
The cart is very well built, strong and as described in the specs. I'm over 65 years old, and I'm able to pull the full cart easily with my bike, and walk it thru the sand without breaking my back.
If you are seriously considering buying fishing stuff online, go with BlueWater Outriggers.