Walking, swimming and the bay buses cost almost nothing here; the bed is the entire budget, and it triples between April and August.
Montenegro Backpackers Home
Four- and six-bed dorms inside the Old Town on the Maritime Museum square, with two kitchens, lockers and free wifi. Beds run €18 in April to €50 in August, and it opens 25 April to 31 October.
Time the city walls climb
The toll booths work 7am–8pm from 1 May to 30 September, 8am–6pm in March and April and 8am–5pm from October to November. From 1 December to the end of February they are closed and the climb is unticketed but unsupervised; nobody is allowed on the walls after 10pm at any time of year.
Use the bay buses
The local Kotor–Risan and Kotor–Tivat services stop on the main road and cost a euro or two paid in cash to the driver, against taxi fares many times that for the same trip up the bay.
Swimming is free here
There is no beach club worth paying for: the ladders along the Dobrota promenade and the rocks at Muo are free and are five to twenty minutes' walk from the gates.
What a day costs
In May: €18 for a dorm bed, a euro or two for a bus up the bay, nothing to swim, and the walls climb as the day's one ticket. In August the identical dorm bed is €50 and the cable car is €25 return — those two numbers are the whole difference.