I took the harp to the park a couple of times but then I started taking my concert ukulele, which has a deeper tone than the plinky-plunky style ukes. A lot lighter to carry and only four strings to tune.

I used to use a Korg chromatic tuner about 20 years ago but they have black on grey LCD display now. I then bought a Martinez MT500 which has the black on grey LCD but I stupidly broke it when I tried to replace the batteries so that's when I bought the Snark. The black on grey might be easier to read than the colours on the Snark.