We’ve been out researching.

The Pontcysyllte Aqueduct is the ideal destination for a relaxed weeks cruising.

The aqueduct, built by Thomas Telford and William Jessop, is 1,007 ft (307 m) long, 11 ft (3.4 m) wide and 5.25 ft (1.60 m) deep. It consists of a cast iron trough supported 126 ft (38 m) above the river on iron arched ribs carried on nineteen hollow masonry piers (pillars). Each span is 53 ft (16 m) wide.

It is a UNESCO world heritage site.

http://whc.unesco.org/en/list/1303

There is a visitor centre, a boat yard shop and a couple of pubs at the Llangollen end but we found a little gem at the easterly end. Barely signposted thanks to local council regulations, you should navigate your boat or walk across the aqueduct to the winding hole after the bridge you will find your self in the little village of Froncysyllte.  Above the canal, with a great view of the aqueduct is the Fron Tea Room and Gardens.  A stunning period property serving pots of speciality teas and coffees to the sounds of Glen Miller and other big bands of the period.

Why not stop for traditional afternoon tea or perhaps a dish of Cawl a Welsh lamb Broth.