I agree with jjb- I prefer to cycle south to the the warm - only ridden north the once - however, I was on my way back from Nice having "nudged" the Alps
Ferry to Dieppe - Bervais - Meaux - Troyes - Digon - Arbois - Nyon (Lac Lema) - Cou (1117m)- Evires (810m) - Annecy - Albertville - Meriallet (1619m) - Rosemund (1968m) - Bourg St Maurice - Val de Isere - Isere (2770m) - Madelaine (1720m) - Lanselvillard - Cenis (2089m) - Cesana (I) - Montgeneve (1845m)- Entenards - Cayolle (2326m) - Nice - Port Grimaud - Toulose - Marseilles -Gineste (327m) - Istres - Aigue Mortes - Montepeliar - St Martin De Londres - Meyrueis - Aurilliac - Rocamadour - Perigueux - Angouloume - Saintes - Niort - Les Sables d'Olonne - Nante - Lorient - Tregunc - Roscoff - Ferry to Porstmouth -3513km

Ferry to Dieppe - Bervais - Meaux - Troyes - Digon - Arbois - Nyon (Lac Lema) - Cou (1117m)- Evires (810m) - Annecy - Albertville - Meriallet (1619m) - Rosemund (1968m) - Bourg St Maurice - Val de Isere - Isere (2770m) - Madelaine (1720m) - Lanselvillard - Cenis (2089m) - Cesana (I) - Montgeneve (1845m)- Entenards - Cayolle (2326m) - Nice - Port Grimaud - Toulose - Marseilles -Gineste (327m) - Istres - Aigue Mortes - Montepeliar - St Martin De Londres - Meyrueis - Aurilliac - Rocamadour - Perigueux - Angouloume - Saintes - Niort - Les Sables d'Olonne - Nante - Lorient - Tregunc - Roscoff - Ferry to Porstmouth -3513km