If you could afford to go for a cruise in 1964 this where you could have gone and the cost.

In 1964 P&O-Orient Lines (as they were then called... i.e. P&O had taken over Orient Line in 1960 and the two companies operated jointly under the P&O-Orient name until about the end of 1967 when the company became P&O.

The ships operating out of Southampton (and/or Tilbury) in that year, in order of tonnage, were the flagship "Canberra" (45,000 tons) built in 1961, "Oriana" (42,000 tons), "Arcadia" (30,000 tons), "Iberia" (30,000 tons), "Orsova" (29,000 tons) and "Chusan" (24,000 tons). They were, at this time, two class ships....First and Tourist Class Passengers.

Children over 12 years of age were charged full fare, and half fare under 12 years at the date of sailing.

Canberra cruised to New York Fair on 19th June, 15 day cruise with fares 1st. Class ranging from £152 to £388; Tourist Class £84 to £135;
To Alexandria (Egypt) on 5th July for 14 days, 1st Class fares £152 to £316, Tourist Class £84 to £135:
To Greece on 20th July for 14 days, 1st Class Fares £152 to £316, Tourist £84 to £135:
To Istanbul on 8th August for 14 days, 1st Class £152 to £316, Tourist £84 to £135:
To Naples on 23rd August for 11 days, 1st £119 to £248, Tourist £66 to £106.

Oriana 31st July to Cannes for 9 days, 1st £98 to £220, Tourist £54 to £84.

Arcadia Easter Cruise, 26 March for 16 days from Tilbury to Dakar, St. Vincent, Madeira, Casablanca and back to Southampton, 1st £132 to £295:
To Palermo on 12th April for 13 days 1st £107 to £240, Tourist £64 to £99:
To Athens on 26th April for 13 days, 1st £107 to £240, Tourist £64 to £99:
To Madeira and Palma on 10th May for 12 days, 1st £99 to £221, Tourist £59 to £91.

Iberia cruised To the Adriatic on 6th June for 21 days 1st £195 to £388, Tourist £103 to £ 160:
To Azores & Tenerife on 28th June for 14 days, 1st £115 to £258, Tourist £69 to £107:

Orsova Cruised from Tilbury, returning to Southampton, to Malta and Palermo on 18th July for 13 days, 1st £107 to £273, Tourist £64 to £99:
To Venice on 1st August for 15 days, 1st £130 to £331, Tourist £78 to £120:
To the Aegean on 21st August for 15 days, 1st £130 to £331, Tourist £78 to £120:
To Naples on 6th September for 13 days, 1st £112 to £287, Tourist £67 to £104.

Chusan cruised from Tilbury, returning to Southampton, to Casablanca on 5th July for 9 days, 1st £74 to £168:
From Southampton to North Med. Coasts and Messina on 13th July for 13 days, 1st £ 107 to £240, Tourist £74 to £96:
To Four North Capitals on 27th July for 13 days, 1st £107 to £240, Tourist £74 to £96;
To Azores, Madeira and Tenerife on 10th August for 15 days, 1st £112 to £252, Tourist £78 to £101;
To The Levant on 28th August for 19 days, 1st £164 to £368, Tourist £114 to £147.

As you can see, many and varied cruises and exciting ports of call especially for anyone who had not travelled on a big liner before.

Many thanks to Michael Ian Byard for the information and his website is well worth a visit.