Photography - Long Exposure Day Time

I am eager to learn long exposure, I love to see long exposure photos, but it is hard to do it, it needs filter things. I don't have those things. Long exposure for me turn out good only during night time. 
During our travel to Scotland in the highlands it was always gloomy. The sun always hide in the clouds hahaha and had a snow. We had a stopover in Lochness where you go into a small tunnel with a small body of water cascading into the sea, and there's a little bridge too. I tried to do a long exposure as its a moving water. Ohh well i am happy that it turns out pretty good. I was amazed, i want to do more hahaha

What do you think of the photos below? I know it's not perfect but I tried hard capturing it so for me it's beautiful (bias) hahaha

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