Dartmouth is the start of the upriver cruise to Totnes, a lovely place with a gleaming marina, half-timbered buildings and steep flower-draped lanes with spectacular views from the hill top.
If you are staying in the 'English Riviera', consider the 'round robin' tour which takes you on a steam train from Paignton with spectacular views along the Devon coast, down to Kingston on the left bank of the Dart then across to Dartmouth on a three minute ferry ride.
Departure times will depend on the tide but if you come on the round robin, this will be sorted out, giving you plenty of time to look around Dartmouth and enjoy a spot of lunch before boarding.
If you do this on your own, you will have a choice of boats, including a paddle steamer on specific dates. But don't leave it to chance, book early, especially in the summer season.
If the tide is right, the cruise will briefly take you downstream, past the medieval castles which once guarded the river mouth on either side.
Then turn around and enjoy superb views of Dartmouth from the water, town clinging to the hills, yachts, the impressive Royal Britannia Naval College and you might just spot the steam train puffing away through the trees.
Now all is quiet, first along forested banks, all different trees and maybe a mighty oak here and there, once so common they gave the river its Celtic name.
It's a lovely time to relax, just the odd boat now and then, a lonely cottage on the river bank and a hamlet or two, loved by visitors but still genuine and traditional.
This is your chance to see the wild life, flocks of Canadian geese in season, an osprey, a rare dipper, a colourful kingfisher and lots of egrets and black-headed gulls.The river is also rich in fish, especially salmon and trout.
Then before you leave the wooded area, look out for the elegant Georgian house peeping through he trees om the hill top. This was the holiday home of Agatha Christie and the place which inspired some of her murder stories.
After a while, the views open up as rolling hills rise above the river, dotted with ancient stones and cattle grazing on lush grass.
You may see a few canoeists and not far from Totnes, look out for the vineyards of Sharpam Estate which offer award-winning wines and also make their own cheese.
Ninety minutes or so after leaving Datmouth, you reach the end of the cruise in Totnes as you approach the old bridge, the last one before the river heads downstream through deep water and steep valleys.
Totnes is an attractive place to look around with its bohemian lanes full of artists, historic church, Devon cream teas and panoramic views from the hill top castle.
