Alastair Humphreys invited me to contribute to his weekly Photo Friday blog spot. Alastair completed a round the World cycle trip and has undertaken many adventures since. I sent him this shot I took in Mexico. Alastair has undertaken some remarkable adventures and expeditions, including a mammoth 4 year round-the-world bike trip. I have just finished his first book – a remarkable and enjoyable book. He also has many great photographs on his web site at www.alastairhumphreys.com. Pay his site a visit for some inspiration!