Poole is an easy town to bring a dog to, which is not true of every resort on this coast.
The beaches
Parts of Branksome Dene and Hamworthy Park take dogs year-round. The main bathing beaches carry restrictions through the season, roughly May to September. The boundaries change, so read the signs at the entrance rather than trusting a page you read in March. See beaches.
The walking
This is where Poole wins. The harbour shoreline runs for miles and is almost entirely flat, from Baiter round to Hamworthy and out to Upton Country Park. Across the water, the Studland dunes and the heath are as good as dog walking gets.
Where you cannot go
Brownsea Island restricts dogs to protect the red squirrels and the lagoon birds. On heathland, leads are required in the ground-nesting season and sometimes year-round, because what lives there nests on the ground and does not survive being found.
The welcome
Pubs in the Old Town and around Ashley Cross are overwhelmingly dog-friendly, as are many cafes.
Staying
Plenty of hotels, cottages and parks take dogs. Confirm the supplement and the number allowed when you book, not on arrival. See dog-friendly stays.