With the inner London boroughs complete, Rick, Isaac and new recruit George Bull look ahead at what you can expect from the outer London boroughs.

Rick Pearson takes a walk with performance poet Anthony Anaxagorou to the highest point in Hackney, on Seven Sisters Road, talking politics, positivity and the role of the poet in society. For more from Anthony, visit: http://anthonyanaxagorou.com/

Having cycled 9,000 miles to India, raised $550,000 for victims of the Boston Marathon bombings and been voted as one of the top 100 happiest people in the UK, Danny Bent's perfectly placed to impart some positivity on the podcast. On a walk through Brockwell Park to the summit of Lambeth – Westow Hill, by Crystal Palace Park – we talk happiness, adventure and life-changing near-death experiences

This episode we look to the skies as Dr Marek Kukula, Public Astronomer at the Royal Observatory Greenwich, gives a fascinating insight into the wonders of our universe, the rich history of Greenwich and, naturally, whether or not aliens exist

Founder of GoodGym, short filmmaker and all-round lovely bloke Ivo Gormley joins us for an expedition along the Regent's Canal.. Before we reach Tower Hamlets' mountainous 16m high point, Ivo discusses GoodGym's mission to combine fitness with community work, his inspiring short film The Runners, and the small matter of whether we, as humans, are intrinsically good.

London historian Jerry White takes us on a magical history tour of Islington. En route to the borough's peak, we take in historic pubs, former prisoner of war camps and "London's worst road".

The founder of parkrun, Paul-Sinton-Hewitt, joins Isaac for a stroll through Hyde Park. With over three million registered runners, parkrun has been credited with transforming people's perception of fitness and, with 47 events held across our capital, Londoners have embraced it like nowhere else.

The Camden rapper Awate walks to the highest point in this home borough, discussing issues of racial inequality, education and rap.

Leader of the Women's Equality Party, Sophie Walker, takes time out of her busy schedule to walk with Isaac to the summit of Westminster: a not-so-notable point on Boundary Road, just south of Swiss Cottage tube station. While the peak left much to be desired, the chat did not – with Sophie explaining why equality for women is the transformative issue for London

Taking in anarchic self-build housing complexes, the merits of having his ashes blown out of a cannon, and the hitherto unsuspected acorn-planting prowess of the Queen, Will takes us on a magical mystery tour of Southwark and Lewisham