To begin with I used the blank video track, V2, which was above V1 which I had used my clips on. Alternatively if a black track was not already there I could have went to Clip > New Video Track or with the timeline selected used Cmd-Y. 

Then opening the Effect Palette under the menu Tools, I went to Image > Color Correction. I dragged this color correction tool on to the track creating an active filler. This would then allows me to make colour correction changes to all the footage at once, as most of it didn't require too much work as the colour seemed to flow pretty smoothly.

Opening Effect Palette

Finding Color Correction to drag to timeline

Filler with effect on it

I then enabled color correction mode by selecting this button at the side of the timeline.

I arranged the windows in a suitable way for me to work and saved it.

I was then able to tweak around with the colour correction until I was happy with the look. 

Workspace for colour correction

However certain clips in the edit, didn't fit in with the rest colour wise and had to be treated separately. With the clip selected on the timeline, I opened the colour correction workspace and then edited the curves until I felt it matched with the clips before and after it. 

Before colour correction

Colour corrected version

Before correction

Curves edited

Final version