The Prince of Wales has spoken of his excitement about becoming a grandfather for the first time, though he admitted it made him feel old, The Radio Times reports.
The Duke and Duchess of Cambridge are expecting their first baby in July.
Prince Charles he said he was looking forward "enormously" to bonding with his first grandchild. Charles told a special 25th anniversary edition of Countryfile which he is guest editing:
The Prince of Wales used the opportunity as guest editor of the BBC1 programme to warn about the dangers of not respecting the environment. He said it was important that the current generation work in harmony with nature, to preserve it for future generations.
Charles also spoke of his love of walking, saying it helps him think clearly: