No pension payout or income of some sort for your dependants other than the lump sum?
There is a very cheap insurance for properties called Term insurance, at your age the cost would be negligible. But it would mean the investment was paid off and you have for your dependants a revenue stream, on low tax as your wife is not earning. Your home would be paid back so no mortgage. But you need to see how much else she would need.
Others have recommended other products, but it is my understanding that these are costly and complicated.
Lucky you only Europe, my OH had to go all over, but mostly Europe. As he got older and wiser he refused to get up in the middle of the night or ruin our weekends !