Complex sentence: The summit is grassy with views restricted by the surrounding higher fells, however there is a good view due south down the Troutbeck valley with England's largest lake, Windermere, well seen.
Split into simpler sentences: The summit is grassy with views restricted by the surrounding higher fells. However, there is a good view due south down the Troutbeck valley with England's largest lake, Windermere, well seen.