Retired business owner Pauline and retired commercial bank manager Peter have been coming to the Canary Island of Lanzarote separately for over 15 years, and even met and fell for each other there. Now, with five children and 15 grandchildren between them, they feel that the time is right to buy their own holiday home in their favourite resort of Playa Blanca. Jasmine Harman provides options for the pair, within their budget of £350,000